Certification
- Australia:M
- Brazil:14
- Canada:PG (Manitoba, DVD rating)
- Canada:G (Quebec)
- France:Tous publics
- Germany:12
- Italy:T
- Mexico:A
- Netherlands:9 (season 1)
- Netherlands:6 (seasons 2 and 3)
- Poland:12
- South Korea:12
- Spain:7 (TV rating)
- Turkey:7+
- United Kingdom:12
- United States:TV-PG (most episodes)
- United States:TV-14 (very few episodes)
- Ukraine:12
- United Arab Emirates:13+ (self-applied)