John Pankow (born April 28, 1954) is an American film and stage actor. He is perhaps best known for a supporting role on the sitcom Mad About You (1993-1999). Description above from the Wikipedia article John Pankow, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Know the day John Pankow's next film opens
Follow once, we'll tell you when it reaches cinemas.
John Pankow is an American actor with an extensive background in both Broadway and Off-Broadway theater, as well as a prolific career in film and television.
He is widely recognized for his portrayal of Ira Buchman on the long-running sitcom Mad About You and his roles in films such as To Live and Die in L.A., Talk Radio, and *batteries not included.
He is primarily associated with the New York theater scene, having performed in numerous acclaimed productions including Twelve Angry Men, The Iceman Cometh, and Serious Money.