diff --git a/backend/api/creators/serializers.py b/backend/api/creators/serializers.py
index 8df3567..3a76549 100644
--- a/backend/api/creators/serializers.py
+++ b/backend/api/creators/serializers.py
@@ -1,3 +1,4 @@
+from typing import Dict, List, Optional
 from rest_framework import serializers
 from django.utils.timezone import localtime
 
@@ -18,23 +19,24 @@ class CreatorListSerializer(serializers.ModelSerializer):
             "source_site",
             "slug",
             "name",
+            "mature",
             "date",
             "description",
             "avatar_url",
             "banner_url",
         ]
 
-    def get_source_site(self, obj):
+    def get_source_site(self, obj) -> str:
         return obj.source_site.slug
 
-    def get_date(self, obj):
+    def get_date(self, obj) -> Dict[str, str]:
         return {
             "created": localtime(obj.date_created).isoformat(),
             "imported": localtime(obj.date_imported).isoformat(),
             "last_import": localtime(obj.date_last_import).isoformat(),
         }
 
-    def get_description(self, obj):
+    def get_description(self, obj) -> Optional[str]:
         # Get the most recent CreatorDescription entry
         creator_desc = (
             CreatorDescription.objects.filter(creator=obj)
@@ -47,13 +49,13 @@ class CreatorListSerializer(serializers.ModelSerializer):
 
         return None  # Return None if no descriptions exist
 
-    def get_avatar_url(self, obj):
+    def get_avatar_url(self, obj) -> str:
         if obj.avatar:
             return obj.avatar.file.url
         else:
             return None
 
-    def get_banner_url(self, obj):
+    def get_banner_url(self, obj) -> str:
         if obj.banner:
             return obj.banner.file.url
         else:
@@ -73,6 +75,7 @@ class CreatorDetailsSerializer(serializers.ModelSerializer):
             "creator_id",
             "slug",
             "name",
+            "mature",
             "avatar_url",
             "banner_url",
             "description",
@@ -80,7 +83,7 @@ class CreatorDetailsSerializer(serializers.ModelSerializer):
             "categories",
         ]
 
-    def get_description(self, obj):
+    def get_description(self, obj) -> List[Dict[str, str]]:
         data = []
 
         # Fetch descriptions ordered by date_imported from the through model
@@ -99,26 +102,26 @@ class CreatorDetailsSerializer(serializers.ModelSerializer):
 
         return data
 
-    def get_avatar_url(self, obj):
+    def get_avatar_url(self, obj) -> Optional[str]:
         if obj.avatar:
             return obj.avatar.file.url
         else:
             return None
 
-    def get_banner_url(self, obj):
+    def get_banner_url(self, obj) -> Optional[str]:
         if obj.banner:
             return obj.banner.file.url
         else:
             return None
 
-    def get_date(self, obj):
+    def get_date(self, obj) -> Dict[str, str]:
         return {
             "created": localtime(obj.date_created).isoformat(),
             "imported": localtime(obj.date_imported).isoformat(),
             "last_import": localtime(obj.date_last_import).isoformat(),
         }
 
-    def get_categories(self, obj):
+    def get_categories(self, obj) -> List[Dict[str, str]]:
         data = []
         for cat in obj.categories.all():
             data.append({"name": cat.name, "slug": cat.slug})