Octavius Rex, also known as Long, Tan, and Handsome, is Pearl's ex-boyfriend, who first appears in the episode "The Chaperone." He later returns in the season 9 episode "Goodbye, Krabby Patty?" and begins to make more recurring appearances.
Octavius appears outside of the Mirror Shop as one of the bystanders who are disgusted and puzzled by what SpongeBob and Patrick did in front of the store. He later appears outside the Krusty Krab, where he and a few other fish smell the Krabby Patty SpongeBob is cooking.
Octavius appears alongside Maestro Mackerel at the concert hall. At first, Maestro does not know who is on the stage, but Octavius tells him it is Squidward and that he is a clarinet player. At first he enjoys watching him play the clarinet, but once Squidward wakes up he hates it.
Octavius is one of the customers in the Krusty Krab who orders the Krabby Soup. Sunshine emerges from the soup bowl and kisses him, causing his wife, Debbie, to hit him, complaining that he loves his soup more than her.
When Octavius is served his food on weights, he cannot lift them. Larry and Frank yell at him to push the weights, so he does, and manages to lift them onto a table. However, he passes out before he can eat.
When SpongeBob is stuck on the Krusty Krab roof, Sandy tries to get him down using her Extend-O-Boots. However, she loses control of the invention and nearly kicks Octavius and other Bikini Bottomites, who run away screaming.
They dated for a while, but then Octavius broke up with her.
He then tries to talk to her at the prom in "The Chaperone," but Pearl rejects him.
After the events of "The Chaperone," Octavius married Debbie. In "There's a Sponge in My Soup," when he is kissed by Sunshine, who is in his soup, Debbie hits him and complains that he loves his soup more than her.
Starting with "Mutiny on the Krusty," he no longer says "meep" and now speaks full sentences.