Jeter is a human man with short black hair, stubble on his chin, and black eyebrows.
He wears his Miami Marlins baseball uniform. It consists of a dark blue long-sleeved vest under a striped baseball kit. On the top right of his shirt, it says 'DJ,' an acronym for Derek Jeter. He wears a dark gray belt and dark gray shoes with black laces. His cap says 'JUST JEET IT,' which is a play on Michael Jackson's "Just Beat It."
In Live Fast, Diane Nguyen, after Diane makes arrangements to throw her father a funeral, none of her family shows up, and her father's corpse is absent. It turns out her family is lounging at a bar and had chummed their father's corpse with the intent to throw his remains in the face of their hated baseball rival team's star, Derek Jeter.
Calling Diane a big shot for getting upset at their low expectations, BoJack tactlessly defends Diane by bluntly describing her career and living situation, saying she is not a big shot. Diane then flies into a rage and drives off with the truck holding her father's chummed remains.
BoJack finds Diane at the city dump, where he consoles her by telling her the ways he appreciates her. He also apologizes to her for what he said about her to her family at the bar. She responds with "Well, it's all true isn't it?"
He then hands her a letter from "Leo" the same penpal her brothers made up to play a cruel prank on her when she was a teenager, claiming he found it at the bar. In it, "Leo" tells Diane he appreciates how she's always organized to go places, chews gum on airplanes so that her ears don't pop, and brings her own bags to the grocery store.
BoJack then reassures Diane that she does not need to find closure or appreciation from her family since they are horrible to her and that she should concentrate on moving forward and focusing her life on where she's living and simply not come back to her family.
He ends by saying her father can no longer hurt anyone and proceeds to knock the barrel of Diane's father's chummed remains out of the truck and tumbling into the city. The barrel narrowly collides with Derek Jeter himself but instead knocks out an old lady Derek Jeter was helping across the street. Derek then proceeds to run off with the lady's purse.
- He's one of the real-life celebrities not voiced by himself on the show.