diff --git a/homeassistant/components/cast/__init__.py b/homeassistant/components/cast/__init__.py
index 1ef18081f93..4d1c00f967b 100644
--- a/homeassistant/components/cast/__init__.py
+++ b/homeassistant/components/cast/__init__.py
@@ -57,7 +57,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Cast from a config entry."""
     await home_assistant_cast.async_setup_ha_cast(hass, entry)
-    hass.config_entries.async_setup_platforms(entry, PLATFORMS)
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
     hass.data[DOMAIN] = {"cast_platform": {}, "unknown_models": {}}
     await async_process_integration_platforms(hass, DOMAIN, _register_cast_platform)
     return True
diff --git a/homeassistant/components/cast/home_assistant_cast.py b/homeassistant/components/cast/home_assistant_cast.py
index 5460b831bcf..5eec2a28908 100644
--- a/homeassistant/components/cast/home_assistant_cast.py
+++ b/homeassistant/components/cast/home_assistant_cast.py
@@ -16,6 +16,7 @@ from .const import DOMAIN, SIGNAL_HASS_CAST_SHOW_VIEW
 SERVICE_SHOW_VIEW = "show_lovelace_view"
 ATTR_VIEW_PATH = "view_path"
 ATTR_URL_PATH = "dashboard_path"
+CAST_USER_NAME = "Home Assistant Cast"
 NO_URL_AVAILABLE_ERROR = (
     "Home Assistant Cast requires your instance to be reachable via HTTPS. Enable Home"
     " Assistant Cloud or set up an external URL with valid SSL certificates"
@@ -34,7 +35,7 @@ async def async_setup_ha_cast(
 
     if user is None:
         user = await hass.auth.async_create_system_user(
-            "Home Assistant Cast", group_ids=[auth.const.GROUP_ID_ADMIN]
+            CAST_USER_NAME, group_ids=[auth.const.GROUP_ID_ADMIN]
         )
         hass.config_entries.async_update_entry(
             entry, data={**entry.data, "user_id": user.id}
diff --git a/tests/components/cast/test_config_flow.py b/tests/components/cast/test_config_flow.py
index 97218a396dd..f40e9701348 100644
--- a/tests/components/cast/test_config_flow.py
+++ b/tests/components/cast/test_config_flow.py
@@ -5,6 +5,7 @@ import pytest
 
 from homeassistant import config_entries, data_entry_flow
 from homeassistant.components import cast
+from homeassistant.components.cast.home_assistant_cast import CAST_USER_NAME
 
 from tests.common import MockConfigEntry
 
@@ -64,7 +65,7 @@ async def test_user_setup(hass):
     result = await hass.config_entries.flow.async_configure(result["flow_id"], {})
 
     users = await hass.auth.async_get_users()
-    assert len(users) == 1
+    assert next(user for user in users if user.name == CAST_USER_NAME)
     assert result["type"] == "create_entry"
     assert result["result"].data == {
         "ignore_cec": [],
@@ -86,7 +87,7 @@ async def test_user_setup_options(hass):
     )
 
     users = await hass.auth.async_get_users()
-    assert len(users) == 1
+    assert next(user for user in users if user.name == CAST_USER_NAME)
     assert result["type"] == "create_entry"
     assert result["result"].data == {
         "ignore_cec": [],
@@ -106,7 +107,7 @@ async def test_zeroconf_setup(hass):
     result = await hass.config_entries.flow.async_configure(result["flow_id"], {})
 
     users = await hass.auth.async_get_users()
-    assert len(users) == 1
+    assert next(user for user in users if user.name == CAST_USER_NAME)
     assert result["type"] == "create_entry"
     assert result["result"].data == {
         "ignore_cec": [],
@@ -126,7 +127,7 @@ async def test_zeroconf_setup_onboarding(hass):
         )
 
     users = await hass.auth.async_get_users()
-    assert len(users) == 1
+    assert next(user for user in users if user.name == CAST_USER_NAME)
     assert result["type"] == "create_entry"
     assert result["result"].data == {
         "ignore_cec": [],