- 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 — S1E22
Episode: MuscleBob BuffPants
Air Date: 1999-09-25
Runtime: 11 min
Overview
SpongeBob thinks he can get more attention if he becomes physically fit. But he soon finds that exercise is hard work, and orders "anchor arms," which he inflates with air, and looks buff. Everyone finds out how fake he is when Sandy signs him up for the annual anchor toss competition at Muscle Beach.