SpongeBob SquarePants is the title character of the series of the same name. He has appeared in every episode of the series (except "The Algae's Always Greener" where his alternate universe counterpart appears instead) giving him the most appearances out of any character.
Although SpongeBob appears in every full-length episode of the series, he does not appear in several shorts. These include the "What If SpongeBob Was Gone?" shorts, "Friend or Foe" shorts, "Ask Patrick Anything," the Merry Nickmas shorts "Patrick the Snowman," "Plankton's Holiday Hits," "A Chuckie Finster Christmas, Channukah, Kwaanza, Winter Solstice" and the SpongeBob Gold short "Krabby Patty IRL."
Episodes in which more than one SpongeBob appear include "The Chaperone," "Sleepy Time," "Squilliam Returns," "The Sponge Who Could Fly," "Spy Buddies," "Overbooked," "Back to the Past," "SpongeBob You're Fired" and "CopyBob DittoPants."
His only non-speaking appearances to date are "Reef Blower" and "Whale Watching."
Appearances = List of episodes
Episodes in which SpongeBob does not play a major role
| # | Episode | Role in episode |
|---|---|---|
| "SB-129" (tr • ga) | Minor | |
| "Band Geeks" (tr • ga) | Supporting | |
| "Plankton's Army" (tr • ga) | Minor | |
| "Enemy In-Law" (tr • ga) | Supporting | |
| "New Leaf" (tr • ga) | Supporting | |
| "Best Frenemies" (tr • ga) | Supporting | |
| "Friend or Foe" (tr • ga) | Supporting | |
| "Rise and Shine" (tr • ga) | Minor | |
| "The Donut of Shame" (tr • ga) | Supporting | |
| "Pest of the West" (tr • ga) | Supporting | |
| "Plankton's Regular" (tr • ga) | Supporting | |
| "Komputer Overload" (tr • ga) | Supporting | |
| "Chum Bucket Supreme" (tr • ga) | Minor | |
| "Growth Spout" (tr • ga) | Supporting | |
| "The Bad Guy Club for Villains" (tr • ga) | Supporting | |
| "The Cent of Money" (tr • ga) | Supporting | |
| "Sweet and Sour Squid" (tr • ga) | Supporting | |
| "The Googly Artiste" (tr • ga) | Supporting | |
| "Fiasco!" (tr • ga) | Minor | |
| "Patrick-Man!" (tr • ga) | Supporting | |
| "Plankton's Pet" (tr • ga) | Supporting | |
| "Squid Plus One" (tr • ga) | Supporting | |
| "The Executive Treatment" (tr • ga) | Minor | |
| "Married to Money" (tr • ga) | Minor | |
| "Mall Girl Pearl" (tr • ga) | Cameo | |
| "Pineapple Invasion" (tr • ga) | Supporting | |
| "Salsa Imbecilicus" (tr • ga) | Minor | |
| "Plankton Retires" (tr • ga) | Supporting | |
| "Patrick's Coupon" (tr • ga) | Minor | |
| "Feral Friends" (tr • ga) | Supporting | |
| "No Pictures Please" (tr • ga) | Supporting | |
| "Squid Noir" (tr • ga) | Supporting | |
| "Ink Lemonade" (tr • ga) | Supporting | |
| "Whale Watching" (tr • ga) | Cameo | |
| "Patnocchio" (tr • ga) | Minor | |
| "Surf N' Turf" (tr • ga) | Supporting | |
| "Girls' Night Out" (tr • ga) | Supporting | |
| "Gary & Spot" (tr • ga) | Minor | |
| "The Krusty Slammer" (tr • ga) | Supporting | |
| "King Plankton" (tr • ga) | Supporting | |
| "The Krusty Bucket" (tr • ga) | Minor | |
| "Karen's Baby" (tr • ga) | Minor | |
| "Senior Discount" (tr • ga) | Supporting |