William Alan Friedle (/ˈfrɪdɛl/; born August 11, 1976) is an American actor, comedian, and writer. He is best known for his role as the elder brother Eric Matthews on the long-running TV sitcom Boy Meets World from 1993 to 2000. More recently, he has voiced a number of animated characters such as Terry McGinnis/Batman, the title character of Batman Beyond, and Ron Stoppable of Kim Possible. He voices Deadpool in Ultimate Spider-Man and Star-Lord in the animated version of Guardians of the Galaxy. He also performed the voices of Doyle in The Secret Saturdays, Lion-O in the rebooted ThunderCats series, and Blue Beetle on Batman: The Brave and the Bold. He has been the speaking voice of Bumblebee in the final episode of Transformers: Prime and the movie Transformers Prime Beast Hunters: Predacons Rising and in the stand-alone sequel series Transformers: Robots in Disguise, as well as in Transformers: Rescue Bots.