He is known for voicing Leonardo in the 2012 "Teenage Mutant Ninja Turtles" and Cody Jones in the 2003 series, "Spiderman" since 2014, Finn from "Adventure Time", Timothy from "Martha Speaks", Robbie from "Gravity Falls", Ash Ketchum and Harley from "Pokémon", various characters from the "Digimon" series, Cliffjumper from "Transformers: Prime", Mumble from the "Happy Feet" films, Kirby Kowalski from the 2013 "Max Steel" series, Kevin Levin from the "Ben 10" series, and Nod from "Epic".