Jimmy Costa is a character from the spin-off series Joey. He first appeared as Joey's old friend but after it was revealed that he was Michael's dad.
- The actor who plays Jimmy Costa, Adam Goldberg, also played Chandler's crazy replacement roommate, Eddie Menuek in Friends from episodes 2-16 to 2-19.
- He has married twice, once to Tracey, and the other time to Gina.
- He is Michael's father.
- He took sailing lessons.
- He is the smartest person Joey knows.