diff --git a/dev/breeze/doc/03_developer_tasks.rst b/dev/breeze/doc/03_developer_tasks.rst
index 5babb592f3c27..8a7e3bcd17654 100644
--- a/dev/breeze/doc/03_developer_tasks.rst
+++ b/dev/breeze/doc/03_developer_tasks.rst
@@ -132,12 +132,48 @@ You can connect to these ports/databases using:
 
 If you do not use ``start-airflow`` command. You can use ``tmux`` to multiply terminals.
 You may need to create a user prior to running the API server in order to log in.
-This can be done with the following command:
+
+**Authentication and User Management**
+
+The authentication method depends on which auth manager is configured:
+
+**SimpleAuthManager (Default in Airflow 3.x)**
+
+SimpleAuthManager is the default authentication manager and comes pre-configured with test username and passwords for development:
+
+.. code-block::
+
+    * admin:admin     (Admin role)
+    * viewer:viewer   (Viewer role)
+    * user:user       (User role)
+    * op:op           (Operator role)
+
+These users are automatically available when using SimpleAuthManager and require no additional setup.
+
+**FabAuthManager**
+
+When using FabAuthManager, you can create users manually:
 
 .. code-block:: bash
 
     airflow users create --role Admin --username admin --password admin --email admin@example.com --firstname foo --lastname bar
 
+Or use the ``--create-all-roles`` flag with ``start-airflow`` in dev mode to automatically create test users:
+
+.. code-block:: bash
+
+    breeze start-airflow --dev-mode --create-all-roles --auth-manager FabAuthManager
+
+This will create the following test users:
+
+.. code-block::
+
+    * admin:admin         (Admin role)
+    * viewer:viewer       (Viewer role)
+    * user:user           (User role)
+    * op:op               (Op role)
+    * testadmin:testadmin (Admin role)
+
 .. note::
     ``airflow users`` command is only available when `FAB auth manager <https://airflow.apache.org/docs/apache-airflow-providers-fab/stable/auth-manager/index.html>`_ is enabled.
 
diff --git a/dev/breeze/doc/images/output_start-airflow.svg b/dev/breeze/doc/images/output_start-airflow.svg
index 852322c8133c7..17551b8bff590 100644
--- a/dev/breeze/doc/images/output_start-airflow.svg
+++ b/dev/breeze/doc/images/output_start-airflow.svg
@@ -1,4 +1,4 @@
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+<svg class="rich-terminal" viewBox="0 0 1482 3783.2" xmlns="http://www.w3.org/2000/svg">
     <!-- Generated with Rich https://www.textualize.io -->
     <style>
 
@@ -43,7 +43,7 @@
 
     <defs>
     <clipPath id="breeze-start-airflow-clip-terminal">
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@@ -495,9 +495,15 @@
 <clipPath id="breeze-start-airflow-line-149">
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             </clipPath>
+<clipPath id="breeze-start-airflow-line-150">
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+</text><text class="breeze-start-airflow-r5" x="0" y="3509.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-143)">│</text><text class="breeze-start-airflow-r1" x="195.2" y="3509.2" textLength="1244.4" clip-path="url(#breeze-start-airflow-line-143)">api-server,&#160;dag-processor,&#160;edge-worker,&#160;celery-worker.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</text><text class="breeze-start-airflow-r5" x="1451.8" y="3509.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-143)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3509.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-143)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3533.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-144)">│</text><text class="breeze-start-airflow-r7" x="195.2" y="3533.6" textLength="1244.4" clip-path="url(#breeze-start-airflow-line-144)">(scheduler&#160;|&#160;triggerer&#160;|&#160;api-server&#160;|&#160;dag-processor&#160;|&#160;edge-worker&#160;|&#160;celery-worker)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</text><text class="breeze-start-airflow-r5" x="1451.8" y="3533.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-144)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3533.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-144)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3558" textLength="12.2" clip-path="url(#breeze-start-airflow-line-145)">│</text><text class="breeze-start-airflow-r4" x="24.4" y="3558" textLength="122" clip-path="url(#breeze-start-airflow-line-145)">--debugger</text><text class="breeze-start-airflow-r1" x="195.2" y="3558" textLength="597.8" clip-path="url(#breeze-start-airflow-line-145)">Debugger&#160;to&#160;use&#160;for&#160;debugging&#160;Airflow&#160;components.</text><text class="breeze-start-airflow-r7" x="805.2" y="3558" textLength="317.2" clip-path="url(#breeze-start-airflow-line-145)">(debugpy&#160;|&#160;pydevd-pycharm)</text><text class="breeze-start-airflow-r5" x="1134.6" y="3558" textLength="219.6" clip-path="url(#breeze-start-airflow-line-145)">[default:&#160;debugpy]</text><text class="breeze-start-airflow-r5" x="1451.8" y="3558" textLength="12.2" clip-path="url(#breeze-start-airflow-line-145)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3558" textLength="12.2" clip-path="url(#breeze-start-airflow-line-145)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3582.4" textLength="1464" clip-path="url(#breeze-start-airflow-line-146)">╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯</text><text class="breeze-start-airflow-r1" x="1464" y="3582.4" textLength="12.2" clip-path="url(#breeze-start-airflow-line-146)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3606.8" textLength="24.4" clip-path="url(#breeze-start-airflow-line-147)">╭─</text><text class="breeze-start-airflow-r5" x="24.4" y="3606.8" textLength="195.2" clip-path="url(#breeze-start-airflow-line-147)">&#160;Common&#160;options&#160;</text><text class="breeze-start-airflow-r5" x="219.6" y="3606.8" textLength="1220" clip-path="url(#breeze-start-airflow-line-147)">────────────────────────────────────────────────────────────────────────────────────────────────────</text><text class="breeze-start-airflow-r5" x="1439.6" y="3606.8" textLength="24.4" clip-path="url(#breeze-start-airflow-line-147)">─╮</text><text class="breeze-start-airflow-r1" x="1464" y="3606.8" textLength="12.2" clip-path="url(#breeze-start-airflow-line-147)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3631.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-148)">│</text><text class="breeze-start-airflow-r4" x="24.4" y="3631.2" textLength="97.6" clip-path="url(#breeze-start-airflow-line-148)">--answer</text><text class="breeze-start-airflow-r6" x="158.6" y="3631.2" textLength="24.4" clip-path="url(#breeze-start-airflow-line-148)">-a</text><text class="breeze-start-airflow-r1" x="207.4" y="3631.2" textLength="317.2" clip-path="url(#breeze-start-airflow-line-148)">Force&#160;answer&#160;to&#160;questions.</text><text class="breeze-start-airflow-r7" x="536.8" y="3631.2" textLength="353.8" clip-path="url(#breeze-start-airflow-line-148)">(y&#160;|&#160;n&#160;|&#160;q&#160;|&#160;yes&#160;|&#160;no&#160;|&#160;quit)</text><text class="breeze-start-airflow-r5" x="1451.8" y="3631.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-148)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3631.2" textLength="12.2" clip-path="url(#breeze-start-airflow-line-148)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3655.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-149)">│</text><text class="breeze-start-airflow-r4" x="24.4" y="3655.6" textLength="109.8" clip-path="url(#breeze-start-airflow-line-149)">--dry-run</text><text class="breeze-start-airflow-r6" x="158.6" y="3655.6" textLength="24.4" clip-path="url(#breeze-start-airflow-line-149)">-D</text><text class="breeze-start-airflow-r1" x="207.4" y="3655.6" textLength="719.8" clip-path="url(#breeze-start-airflow-line-149)">If&#160;dry-run&#160;is&#160;set,&#160;commands&#160;are&#160;only&#160;printed,&#160;not&#160;executed.</text><text class="breeze-start-airflow-r5" x="1451.8" y="3655.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-149)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3655.6" textLength="12.2" clip-path="url(#breeze-start-airflow-line-149)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3680" textLength="12.2" clip-path="url(#breeze-start-airflow-line-150)">│</text><text class="breeze-start-airflow-r4" x="24.4" y="3680" textLength="109.8" clip-path="url(#breeze-start-airflow-line-150)">--verbose</text><text class="breeze-start-airflow-r6" x="158.6" y="3680" textLength="24.4" clip-path="url(#breeze-start-airflow-line-150)">-v</text><text class="breeze-start-airflow-r1" x="207.4" y="3680" textLength="585.6" clip-path="url(#breeze-start-airflow-line-150)">Print&#160;verbose&#160;information&#160;about&#160;performed&#160;steps.</text><text class="breeze-start-airflow-r5" x="1451.8" y="3680" textLength="12.2" clip-path="url(#breeze-start-airflow-line-150)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3680" textLength="12.2" clip-path="url(#breeze-start-airflow-line-150)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3704.4" textLength="12.2" clip-path="url(#breeze-start-airflow-line-151)">│</text><text class="breeze-start-airflow-r4" x="24.4" y="3704.4" textLength="73.2" clip-path="url(#breeze-start-airflow-line-151)">--help</text><text class="breeze-start-airflow-r6" x="158.6" y="3704.4" textLength="24.4" clip-path="url(#breeze-start-airflow-line-151)">-h</text><text class="breeze-start-airflow-r1" x="207.4" y="3704.4" textLength="329.4" clip-path="url(#breeze-start-airflow-line-151)">Show&#160;this&#160;message&#160;and&#160;exit.</text><text class="breeze-start-airflow-r5" x="1451.8" y="3704.4" textLength="12.2" clip-path="url(#breeze-start-airflow-line-151)">│</text><text class="breeze-start-airflow-r1" x="1464" y="3704.4" textLength="12.2" clip-path="url(#breeze-start-airflow-line-151)">
+</text><text class="breeze-start-airflow-r5" x="0" y="3728.8" textLength="1464" clip-path="url(#breeze-start-airflow-line-152)">╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯</text><text class="breeze-start-airflow-r1" x="1464" y="3728.8" textLength="12.2" clip-path="url(#breeze-start-airflow-line-152)">
 </text>
     </g>
     </g>
diff --git a/dev/breeze/doc/images/output_start-airflow.txt b/dev/breeze/doc/images/output_start-airflow.txt
index 0d9e8ae042781..a9977831b2365 100644
--- a/dev/breeze/doc/images/output_start-airflow.txt
+++ b/dev/breeze/doc/images/output_start-airflow.txt
@@ -1 +1 @@
-12f65aa510878652aee52b8524aa59a4
+8c0ffb1a8bf03d918b4184e511ac5c34
diff --git a/dev/breeze/src/airflow_breeze/commands/developer_commands.py b/dev/breeze/src/airflow_breeze/commands/developer_commands.py
index 596be8d720751..8028f07d8bcfd 100644
--- a/dev/breeze/src/airflow_breeze/commands/developer_commands.py
+++ b/dev/breeze/src/airflow_breeze/commands/developer_commands.py
@@ -503,6 +503,12 @@ def shell(
     "(mutually exclusive with --skip-assets-compilation).",
     is_flag=True,
 )
+@click.option(
+    "--create-all-roles",
+    help="Creates all user roles for testing with FabAuthManager (viewer, user, op, admin). "
+    "SimpleAuthManager always has all roles available.",
+    is_flag=True,
+)
 @click.argument("extra-args", nargs=-1, type=click.UNPROCESSED)
 @option_airflow_constraints_location
 @option_airflow_constraints_mode_ci
@@ -565,6 +571,7 @@ def start_airflow(
     debug_components: tuple[str, ...],
     debugger: str,
     dev_mode: bool,
+    create_all_roles: bool,
     docker_host: str | None,
     executor: str | None,
     extra_args: tuple,
@@ -603,6 +610,7 @@ def start_airflow(
             "[warning]You cannot skip asset compilation in dev mode! Assets will be compiled!"
         )
         skip_assets_compilation = True
+
     if use_airflow_version is None and not skip_assets_compilation:
         # Now with the /ui project, lets only do a static build of /www and focus on the /ui
         run_compile_ui_assets(dev=dev_mode, run_in_background=True, force_clean=False)
@@ -637,6 +645,7 @@ def start_airflow(
         debugger=debugger,
         db_reset=db_reset,
         dev_mode=dev_mode,
+        create_all_roles=create_all_roles,
         docker_host=docker_host,
         executor=executor,
         extra_args=extra_args,
diff --git a/dev/breeze/src/airflow_breeze/commands/developer_commands_config.py b/dev/breeze/src/airflow_breeze/commands/developer_commands_config.py
index 67ed4a81504dc..20696a4a76005 100644
--- a/dev/breeze/src/airflow_breeze/commands/developer_commands_config.py
+++ b/dev/breeze/src/airflow_breeze/commands/developer_commands_config.py
@@ -285,9 +285,7 @@
         },
         {
             "name": "Other options",
-            "options": [
-                "--forward-credentials",
-            ],
+            "options": ["--forward-credentials", "--create-all-roles"],
         },
         {
             "name": "Debugging options",
diff --git a/dev/breeze/src/airflow_breeze/files/simple_auth_manager_passwords.json b/dev/breeze/src/airflow_breeze/files/simple_auth_manager_passwords.json
index 8f297bdae3d71..1f74a7b6616c3 100644
--- a/dev/breeze/src/airflow_breeze/files/simple_auth_manager_passwords.json
+++ b/dev/breeze/src/airflow_breeze/files/simple_auth_manager_passwords.json
@@ -1 +1 @@
-{"admin": "admin", "viewer":  "viewer"}
+{"admin": "admin", "viewer": "viewer", "user": "user", "op": "op"}
diff --git a/dev/breeze/src/airflow_breeze/params/shell_params.py b/dev/breeze/src/airflow_breeze/params/shell_params.py
index bce82a35e1239..f0bf4115019f0 100644
--- a/dev/breeze/src/airflow_breeze/params/shell_params.py
+++ b/dev/breeze/src/airflow_breeze/params/shell_params.py
@@ -156,6 +156,7 @@ class ShellParams:
     celery_flower: bool = False
     clean_airflow_installation: bool = False
     collect_only: bool = False
+    create_all_roles: bool = False
     debug_components: tuple[str, ...] = ()
     debugger: str = "debugpy"
     db_reset: bool = False
@@ -543,7 +544,9 @@ def env_variables_for_docker_commands(self) -> dict[str, str]:
         _set_var(_env, "AIRFLOW__CORE__AUTH_MANAGER", self.auth_manager_path)
         _set_var(_env, "AIRFLOW__CORE__EXECUTOR", self.executor)
         if self.auth_manager == SIMPLE_AUTH_MANAGER:
-            _set_var(_env, "AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_USERS", "admin:admin,viewer:viewer")
+            _set_var(
+                _env, "AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_USERS", "admin:admin,viewer:viewer,user:user,op:op"
+            )
         _set_var(
             _env,
             "AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_PASSWORDS_FILE",
@@ -589,6 +592,7 @@ def env_variables_for_docker_commands(self) -> dict[str, str]:
         _set_var(_env, "CI_TARGET_BRANCH", self.airflow_branch)
         _set_var(_env, "CI_TARGET_REPO", self.github_repository)
         _set_var(_env, "COLLECT_ONLY", self.collect_only)
+        _set_var(_env, "CREATE_ALL_ROLES", self.create_all_roles)
         _set_var(_env, "COMMIT_SHA", None, commit_sha())
         _set_var(_env, "COMPOSE_FILE", self.compose_file)
         _set_var(_env, "DB_RESET", self.db_reset)
diff --git a/scripts/in_container/check_environment.sh b/scripts/in_container/check_environment.sh
index 6c385f9817316..77dcb63628359 100755
--- a/scripts/in_container/check_environment.sh
+++ b/scripts/in_container/check_environment.sh
@@ -114,8 +114,18 @@ function startairflow_if_requested() {
 
         if airflow config get-value core auth_manager | grep -q "FabAuthManager"; then
             airflow users create -u admin -p admin -f Thor -l Adminstra -r Admin -e admin@email.domain || true
+
+            # Create all roles for testing if CREATE_ALL_ROLES is set
+            if [[ "${CREATE_ALL_ROLES}" == "true" ]]; then
+                echo "Creating all test roles for FabAuthManager..."
+                airflow users create -u viewer -p viewer -f Test -l Viewer -r Viewer -e viewer@email.domain || true
+                airflow users create -u user -p user -f Test -l User -r User -e user@email.domain || true
+                airflow users create -u op -p op -f Test -l Op -r Op -e op@email.domain || true
+                airflow users create -u testadmin -p testadmin -f Test -l TestAdmin -r Admin -e testadmin@email.domain || true
+                echo "All test roles created successfully for FabAuthManager."
+            fi
         else
-            echo "Skipping user creation as auth manager different from Fab is used"
+            echo "SimpleAuthManager detected. All roles (admin, viewer, user, op) are always available via configuration in .dev/breeze/src/airflow_breeze/files/simple_auth_manager_passwords.json"
         fi
     fi
     return $?