David M. Pressman, Senior is an American actor, probably best known for roles on Doogie Howser, M.D., Ladies Man, a recurring role on Profiler, the titular character on Mulligan's Stew and as a fictional scientist in the 1971 film The Hellstrom Chronicle.
His first role was on the soap opera The Edge of Night, and one of his first movie starring roles was in Shaft.
Pressman has often portrayed a doctor, such as in Mighty Joe Young, TV movies A Fighting Choice, Whose Daughter Is She?, Murder Without Conviction, Victims for Victims: The Theresa Saldana Story, as well as in guest roles on Hawaii Five-O, Paper Moon, The Mary Tyler Moore Show, Griff, Dawson's Creek, The Drew Carey Show, Providence, The Practice, Dangerous Minds, Diagnosis Murder Law & Order, Matlock "Ghost Whisper" and Marcus Welby, M.D.
In 1979, Pressman portrayed H.R. Haldeman in the CBS miniseries Blind Ambition.
He had a guest role on M*A*S*H as troublemaking Congressional aide, R. Theodore Williamson; who vindictively schemed to paint Margaret Houlihan as a communist sympathizer, but eventually failed.
Pressman also guest starred on Gilmore Girls.
Pressman has also played various guest characters in Star Trek: Deep Space Nine.