His tragic death came on May 28, 1998, Hartman's wife Brynn shot and killed him while he slept in their Encino, Los Angeles home, then committed suicide several hours later. In the weeks following his death, Hartman was celebrated in a wave of tributes.
Voice Credits:
| 13 Ghosts of Scooby-Doo, The (1985, Animated Series) | (additional voices) | |
| Adventures of Don Coyote and Sancho Panda, The (1990, Animated Series) | (additional voices) | |
| Alien Encounter (1994, Attraction) | T.O.M. 2000 | |
| All-New Scooby and Scrappy-Doo Show, The (1983, Animated Series) | (additional voices) | |
| Bill & Ted's Excellent Adventures (1990, Animated Series) | (additional voices) | |
| Brave Little Toaster, The (1987, Animated Film) | Air Conditioner | |
| Hanging Lamp | ||
| Buster and Chauncey's Silent Night (1998, Animated Film) | Chauncey | |
| Captain Planet and the Planeteers (1990, Animated Series) | Russian Ambassador | |
| Challenge of the GoBots (1984, Animated Series) | (additional voices) | |
| Critic, The (1994, Animated Series) | Adolph Hitmaker | |
| Bernie Wasserman | ||
| Professor Blowhard | ||
| Darkwing Duck (1991, Animated Series) | Paddywhack | |
| Dennis the Menace (1986, Animated Series) | George Wilson | |
| Henry Mitchell | ||
| Ruff | ||
| Droopy, Master Detective (1993, Animated Series) | (additional voices) | |
| Dukes, The (1983, Animated Series) | (additional voices) | |
| Enchanted Tiki Room (Under New Management), The (1998, Attraction) | Morris | |
| Fantastic Max (1988, Animated Series) | (additional voices) | |
| Fish Police (1992, Animated Series) | Inspector C. Bass | |
| Foofur (1986, Animated Series) | (additional voices) | |
| Gravedale High (1990, Animated Series) | (additional voices) | |
| Kiki's Delivery Service (1989, Anime Film) | Jiji | |
| Little Rascals, The (1982, Animated Series) | (additional voices) | |
| Pagemaster, The (1994, Live Action/Animated Film) | Tom Morgan | |
| Pink Panther and Sons (1984, Animated Series) | (additional voices) | |
| Ren and Stimpy Show, The (1991, Animated Series) | Announcer on Russian filmreel | |
| Scooby and Scrappy-Doo/Puppy Hour, The (1982, Animated Series) | (additional voices) | |
| Simpsons, The (1989, Animated Series) | Charlton Heston | |
| Lionel Hutz | ||
| Troy McClure | ||
| Super Friends (1980, Animated Series) | (additional voices) | |
| TaleSpin (1990, Animated Series) | Ace London | |
| Tiny Toon Adventures (1990, Animated Series) | Octavius | |
| Tom and Jerry Kids (1990, Animated Series) | Calaboose Cal |
