During the 1980's, Kesten starred in over fifty commercials, did various print work, and guest-starred on various television shows such as Trapper John, M.D., Diff'rent Strokes, Silver Spoons, and Taxi. He also provided voice-over work in movies such as The Natural, Gremlins, Uncommon Valor, and Indiana Jones and the Temple of Doom. Today, Kesten still works as an actor and appears at Comic-Con to meet and speak with veteran and new up and coming animators, fans, and voice-over artists to answer questions and share memories about working as the voice of Charlie Brown.