HomePeople Biography and filmographyRoger DeWitt Biography unavailable on TMDB. Movies (2)TV shows (4) Movies (2) Shout1991 · Additional Voices (voice) Heidi's Song1982 · Peter (voice) TV shows (4) Divorce2016 · Auctioneer Law & Order1990 · John Marconi, Overton Snorks1984 · Jo-Jo The Jetsons1962 · Sam Spacely (voice)