John Mahr Rothman (born June 3, 1949) is an American film, television, and stage actor.
Rothman was born in Baltimore, Maryland, the son of Elizabeth D. (née Davidson) and Donald N. Rothman, a lawyer. He is a graduate of the Yale School of Drama. His Broadway stage credits include Richard Nelson's Some Americans Abroad and the 2007 revival of Craig Lucas's Prelude to a Kiss. He has also performed in numerous Off Broadway productions including his own one-person play The Impossible H. L. Mencken.
Rothman portrayed Union General John F. Reynolds in Gettysburg (1993). He has appeared on such shows as Guiding Light, Law & Order and Arrested Development. Rothman also appeared in such comedic movies as Ghostbusters (1984), Big (1988), Jingle All the Way (1996), Say It Isn't So (2001), Welcome to Mooseport (2004) and Taxi (2004).
Spent the summer of 1973 working as the leader of a teen tour of Europe.
Starred in his own play the "Impossible H.L. Mencken."
Second cousin of Glenn Shadix.
