SpongeBob The Square Guy & Friends is a Nickelodeon spoof to Thomas The Tank Engine & Friends.
- Set in Nicktoon Land, SpongeBob SquarePants lives his life with his friends Tommy Pickles (in his 11-year-old self), Dudley Puppy, Otis Cow, Danny Fenton, Lincoln Loud, and Jimmy Neutron, and most of all Jenny Wakeman. Mr. Eugene Krabs serves as the person in charge.
- SpongeBob SquarePants as Thomas (Tom Kenny)
- Tommy Pickles as Edward (Elizabeth Daily)
- Dudley Puppy as Henry (Jerry Trainor)
- Otis Cow as Gordon (Chris Hardwick)
- Danny Fenton as James (David Kaufman)
- Lincoln Loud as Percy (Grant Palmer)
- Jimmy Neutron as Toby (Debi Derryberry)
- Jenny Wakeman as Emily (Janice Kawaye)
- Mr. Eugene Krabs as Sir Topham Hatt (Clancy Brown)
- Narrator as himself (George Carlin, Season 1-4) (Alec Baldwin, Season 5-6) (Michael Brandon, Season 7-16) (Mark Moraghan, Season 17-present)