Cupid is a little angel who wishes that someone could love him as seen in the episode Uncle Cupid. He is voiced by Greg Proops.
Cupid is often described as a chubby little baby, he has blond hair and only wears a diaper, he also has a set of wings to allow him to fly. When Uncle Grandpa gives him clothes, he wears a white long sleeved shirt with a big collar, and purple pants with a pair of boots.
Cupid is emotionally confused as he wishes that he can be loved by someone else and that he can finally experience true love, he can also be very picky at times when he told Uncle Grandpa his preference of what kind of women he'd like to be with and rejected a duck Uncle Grandpa showed him. He was then show to be in a homosexual relationship with a pink alien who fell in love with him, and Cupid finally learned what true love was from the experience.
Cupid is the first character on Uncle Grandpa to be homosexual.