"Whassup, Syl? Long time no see."
Joe is a male Zbornak with a blue body and pink mane. Like all male Zbornaks, he's bulky and has a pointy snout, which is darker than the rest of his body. He also has a stubble.
Joe still lives on his home planet, as shown in the episode.
It's unknown what his personality is like.
It's unknown what their relationship was like, but they seem to be acquainted, as Sylvia said hi to him when she came back to introduce Wander to her family.