Richard Masur (born November 20, 1948) is an American character actor who has appeared in more than 40 films.

He is best known for playing David Kane on One Day at a Time (1975–1976), Nick Lobo on Rhoda (1974–1977), Clark in The Thing (1982), adult Stanley Uris in the miniseries It (1990), and Edward L. L. Moore on Younger (2016–2018).

[5] In 1981, Masur played the role of a child molestor armed with a camera in the television film Fallen Angel.

Masur played the father to Corey Haim's character in 1988's License to Drive[7] and was part of the ensemble cast of the 1990 TV miniseries adaptation of Stephen King's It.

He has also appeared in guest spots on many TV shows, including M*A*S*H, The Mary Tyler Moore Show, Hawaii Five-O, Happy Days, Picket Fences, Matlock, Murphy Brown, Law & Order, Kevin (Probably) Saves the World, All In The Family, and Transparent.