- For his father, see Buck.
After Larry escapes from Dr. Mephesto's lab, he seeks out his wife, Leslie. When he meets her, he learns that she has a new life with another man and the couple have two kids together, Buck and Calvin.
Buck Jr is a teenager with short, curly brown hair and brown eyebrows. He wears a dark red shirt under a big yellow hooded jacket with the top open and "BUFU" written in green and what appears to be a green stripe in the middle. He also wears big dark green pants with a blue feel and white shoes. He also wears a blue Denver Broncos cap.