Joe is a citizen of Bikini Bottom who works either as a paramedic or a Zookeeper in the Bikini Bottom Zoo. In The Smoking Peanut, he and a fellow co-worker attempt to calm down a distraught Clamu. He survived when she tossed him into the air. Joe is recognizable by his lime-green skin and dark green eyes. He is usually paired with a co-worker who looks just like him. This co-worker could be his twin brother.
Joe is seen in Boating School as a paramedic, cramming an inflated Mrs. Puff into an ambulance.
In The Chaperone, when the prom is getting ruined by people doing the dance called "The Sponge", Joe and his co-worker are seen running through the crowd holding a stretcher, with people piling on top of it.
In Just One Bite, when Squidward is being taken to the hospital by ambulance, Joe is seated next to Squidward's disembodied head, holding a bucket containing the rest of his body and legs.
In Funny Pants, he is seen with a fellow paramedic that looks identical to him at the Krusty Krab when they were eating lunch and laughing at SpongeBob's joke. Later, he was seen put Squidward on an abulence because he broke his laugh box.
In The Smoking Peanut, Joe and an identical co-worker are seen trying to calm down Clamu at the Bikini Bottom Zoo. Clamu threw him into the air, but he survived. Joe was seen again at the end of the episode. Joe was seen cheering in the background when Clamu had a baby.