diff --git a/homeassistant/components/media_player/plex.py b/homeassistant/components/media_player/plex.py
index 65957c01bdf..b328a928538 100644
--- a/homeassistant/components/media_player/plex.py
+++ b/homeassistant/components/media_player/plex.py
@@ -330,6 +330,7 @@ class PlexClient(MediaPlayerDevice):
                 self._session.viewOffset)
             self._media_content_id = self._convert_na_to_none(
                 self._session.ratingKey)
+            self._media_content_rating = self._session.contentRating
         else:
             self._media_position = None
             self._media_content_id = None
@@ -341,6 +342,7 @@ class PlexClient(MediaPlayerDevice):
                 self._session.player.machineIdentifier)
             self._name = self._convert_na_to_none(self._session.player.title)
             self._player_state = self._session.player.state
+            self._session_username = self._session.username
             self._make = self._convert_na_to_none(self._session.player.device)
         else:
             self._is_player_available = False