- Tom Kenny (SpongeBob SquarePants / Gary the Snail (voice))
- Bill Fagerbakke (Patrick Star (voice))
- Rodger Bumpass (Squidward (voice))
- Clancy Brown (Mr. Krabs (voice))
- Carolyn Lawrence (Sandy Cheeks (voice))
- Mary Jo Catlett (Mrs. Puff (voice))
- Mr. Lawrence (Plankton / Larry the Lobster (voice))
- Jill Talley (Karen Plankton (voice))
- Lori Alan (Pearl Krabs (voice))
SpongeBob SquarePants — S5E1
Episode: Friend or Foe
Air Date: 2007-04-13
Runtime: 24 min
Overview
After yet another attack on the Krusty Krab by Plankton, SpongeBob asks Mr. Krabs why they hate each other so much. Mr. Krabs tells his side of the story in a series of flashbacks.