American Dad/An American Tail is a parody with Thomas pictures and An American Tail sounds.
The cast is:
- Francine as Mama Mousekewitz
- Steve's Friend as Papa Mousekewitz
- Annie/Clarabel (from Thomas and Friends) as Tanya Mousekewitz
- Clows as Fievel Mousekewitz
- Eustace (from Courage the Cowardly Dog) as Henri
- Smudger (From Thomas and Friends) as Warren T. Rat
- Whiff (from Thomas and Friends) as Digit
- Roger as Moe
- Toby (from Thomas and Friends) as Tony Toponi
- Lady (from Thomas and Friends) as Bridget
- Diesel (from Thomas and Friends) as Honest John
- Mavis (from Thomas and Friends) as Gussie Mausheimer
- Dennis (from Thomas and Friends) as Tiger (Dennis and Tiger are both lazy and greedy)