Snailster Gary

Snailster Gary is the Anti-Plankton team pet. He was once Prisoner SpongeBob's pet, until Leader Plankton took over the ocean.

Season 1

 * 109. "Wanted: The Black Sponge" (debut)
 * 113. "Trip To The Moon"
 * 115. "The Universe Traveler"

Season 2

 * 202. "Prehistoric Plankton"
 * 207. "The Leader Plankton! Christmas Special"
 * 208. "It's Almost A New Year!"
 * 212. "The Black Sponge Is At It Again" (cameo)
 * 215. "4 Out of 4: Admin Status" (cameo)
 * 226. "Young Leader"

Season 3

 * 302. "Escaping The Cliff's Death"
 * 304. "Eliminating The Ghost"
 * 305. "How Leader Plankton Kidnapped Santa"
 * 306. "New Year Snail"
 * 307. "Snail Slave"
 * 308. "Twina Tyrant"
 * 310. "Leader Gary"
 * 311. "Anti-Gary" (killed off)
 * 312. "New Member" (mentioned)
 * 318. "Count Plankula" (ghost)

Death
Snailster Gary was captured by LP in "Snail Slave" and turned him evil. Snailster Gary overthrew Plankton in "Leader Gary" and became leader in his place. Gary met his end in "Anti-Gary" when Plankton threw a bomb at him and exploded. In "New Member" he was replaced by Snailster Slimey. In "Count Plankula", Gary returned as a ghost to warn Anti-Plankton about something. However, he never got the chance and eventually faded away.

Trivia

 * He wears a special fighting shell.
 * His appearances in Season 1 and Season 2 were basically just cameos and he was respresented as the team's mindless pet. In Season 3, his appearances were longer and he was portrayed as a pet but also a group member like Timmy the Twina.
 * He was killed off in Season 3 and was replaced by Snailster Slimey.