Donald SquarePants

Donald SquarePants is a character from Adventure's From The Deep Blue Sea.

Adventure's From The Deep Blue Sea
He appears in the episode Long Lost Brother!? as SpongeBob's rich long lost brother. He is the owner of Snail-Po as he was adopted by the now deceased last owner of Snail-Po. He also used to have a rare heart condition until he got shot.

Trivia

 * He is a parody of Donald Trump.