Stripe (voiced by Frank Welker) is a villainous gremlin and the main antagonist in Jeffrey, Jaden, Hiccup & Friends' Storm Adventures of Gremlins. When Billy first received a mogwai, he left it out too long and it turned into a gremlin. The gremlin gained a stripe (hence its namesake). Stripe amassed an army of gremlins to terrorize the town. The Justice Guardians and Billy ultimately managed to defeat Stripe with help from Gizmo.