Larry Karl Gender: Male Friends and Family Cousin: Carl Karl Behind the Scenes Debut Appearance: "Primal Perry" Final Appearance: "Primal Perry" Voiced by: Dan Povenmire Larry Karl also named Cousin Larry is Carl Karl's cousin. He is heard in the episode "Primal Perry". Appearances "Primal Perry". This character article is a stub. You can help Phineas and Ferb Wiki by expanding it. Retrieved from "https://phineasandferb.fandom.com/wiki/Cousin_Larry?oldid=638669" Categories: Characters Teens Character stubs Article stubs Males Unseen Characters Carl Karl C One appearance only Community content is available under CC-BY-SA unless otherwise noted.