Tyler Tucker is Eliza's and Debbie's cousin. He is Marianne's and Nigel's nephew through Marianne's sister Nancy Tucker nee Hunter. He is only six months older than Eliza but acts more immaturely than Eliza does. He doesn't really understand the dangers of living in the wild. He's a big know-it-all but generally has a good head on his shoulders, and he really cares about his cousins Debbie, Eliza, and Donnie. His parents are Dennis (voiced by Martin Mull) and Nancy Tucker (voiced by Mary Kay Place). Tyler has dark brown hair and a slight tanner skin tone than his cousins. He lives in Kansas City with his parents rather than Arizona, where his grandparents live.
He is voiced by Jonathan Taylor Thomas.