- 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 — S2E25
Episode: The Secret Box
Air Date: 2001-09-07
Runtime: 11 min
Overview
Patrick keeps a small box everywhere he goes and refuses to tell SpongeBob what's in it. Curiosity eventually gets the better of our spongy hero, as he decides to try and sneak a peek while Patrick is sleeping.