Bob Bergen Porky PIg Voice Jeff Bergman Bugs Bunny, Daffy Duck Voice Powers Boothe Leslie Hunt Guest Voice Larry Dorf Additional Voices Guest Voice, Writer Paul Julian Road Runner (Archive Footage) Guest Voice Maurice LaMarche Yosemite Sam Voice Garry Marshall Dr. Weisberg Guest Voice Rachel Ramras Additional Voices Guest Voice, Writer Sam Register Executive Producer Keith Baxter Director Spike Brandt Director Tony Cervone Director Hugh Davidson Writer Ben Falcone Writer