Marty is a comedic talent whose career has included work in films, television series, live sketch comedy, theater and commercials. Grabstein’s film credits include Bury The Evidence and Apartment #5C. His television credits include parts on three Law & Order series, Third Watch, and Conviction. In addition to roles in several theater productions, Grabstein co-wrote and co-starred with Rick Mowat for their sketch comedy act Lab Rats, which performed to rave reviews in comedy clubs throughout New York City. Grabstein’s most iconic performance as the voice of Courage The Cowardly Dog was reprised by the actor for the TV special, The Fog of Courage, and the crossover movie, Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog.