Rodney "Rock" Callahan is a character in the Kick Buttowski: Suburban Daredevil Series. He was voiced by Dwight Howard. He is among Kick Buttowski's heroes, along with Mouth and Gunther. He appears in the film "Rock Callahan" by Mellowbrook. "Let's rock" is his catchphrase, which Kick and Gunther frequently repeat. He always says it after bending his neck forward and making a loud noise. In films like "Perseus in Pittsburgh (in "Sleepover"), "Box Office Blitz" (Rock Callahan's Zombie Motocross Starring Rock Callahan), and "Bromance" (Octo-Cop), he plays lead roles.