Frederick the Frog, or Agent F, is a frog agent of the OWCA. He is the nemesis of Doctor Komminlotz and a friend of Perry. This article is a stub. You can help Phineas and Ferb Fanon by expanding it. We're waiting on some parts! This article is under construction. It may cut off at one point. Retrieved from "https://pffanon.fandom.com/wiki/Frederick_the_Frog?oldid=258612" Categories: Article stubs Articles under construction Fanon Works Animals Characters Agents Community content is available under CC-BY-SA unless otherwise noted.