Jay Baruchel Hiccup Voice America Ferrera Astrid Voice Christopher Mintz-Plasse Fishlegs Voice Andree Vermeulen Ruffnut Voice T.J. Miller Tuffnut Voice Zack Pearlman Snotlout Jorgenson Voice Chris Edgerly Gobber the Belch Voice Nolan North Stoick the Vast Voice Tim Conway Mulch Voice Mark Hamill Alvin the Treacherous Voice Stephen Root Mildew Voice Tom Wilson Bucket Voice Art Edler Brown Executive Producer FM DeMarco Writer John Sanford Director