Thurop Van Orman Flapjack Voice Brian Doyle-Murray Captain K'nuckles Voice Roz Ryan Bubbie Voice Jeff Bennett John, Merman No. 4, Peppermint Larry, Scoops Pennington, Sea Monster No. 3 Voice S. Scott Bullock Captain Lasouarda, Dashing Danny's Twin, Merman No. 1, Norm the Constable (Candy Bandit), Patch, Sea Monster No. 4 Guest Voice Gregg Turkington Pirate Guest Voice Mike Roth Writer Benton Connor Writer Peter Browngardt Writer Max Winston Writer Jackie Buscarino Writer Kent Osborne Writer Margaret Tang Voice Director