Mark LowenthalActingOctober 13, 1953 (72 years old)Pittsburgh, Pennsylvania, USAPopularity: 0IMDbAlso Known AsMark LowenKnown For8.3GemTwin PeaksWalter Neff7.221 Jump StreetAlbert Janowitz6.7CoachKevin8.0GemTales from the CryptDoctor8.0GemTales from the CryptDistrict Attorney (segment "The Man Who Was Death")6.3thirtysomething7.5Rebel HighwayRookie7.9Sledge Hammer!Sketch Artist6.8RoseanneEd the IRS Office Clerk6.0Dark AngelBruce the Scientist5.8Mr. JonesRichard6.7NewsiesJonathanFilmographyMovies17TV Shows8AllCast17Crew1Browse All2010sS.O.S.: State of SecuritySelf1990s6.0My Fellow AmericansNSA Agent Caldwell5.8Mr. JonesRichard6.7My LifeDr. Mills6.7NewsiesJonathan6.2Article 99Dr. Wolin6.0Nickel & DimeIRS Agent Watson "Dwayne" black suit4.5The OwlDr. Miller4.1Iron MazeDr. Rathman6.0Dark AngelBruce the Scientist6.6Postcards from the EdgeBart5.6Heart ConditionCiao Chow Club Visitor1980s5.3Scenes from the Class Struggle in Beverly HillsGuest at Wake4.2Checking OutPhillips3.3Basic TrainingVladimir3.9Imps*Bert
