Michael Callan (born Martin Calinoff[1][2] November 22, 1935 – October 10, 2022), sometimes known as Mickey Collins, was an American actor best known for originating the role of Riff in West Side Story on Broadway, and for his film roles for Columbia Pictures, notably Gidget Goes Hawaiian, The Interns and Cat Ballou.

Born Martin Calinoff in Chester, Pennsylvania[3] to a Jewish family, Callan grew up in Philadelphia, where his father was a restaurateur.

He auditioned several times before getting the role[7] over a period of a year, and he was almost taken out at the last minute because director Jerome Robbins felt he was "too good-looking" for the part.

[1][10] Selznick said Callan only wanted to sign a two-pictures-a-year contract, but she persuaded him that he would benefit from the extra exposure that studio would give him under a long-term deal.

Columbia then considered Callan for a number of projects, including The Mountain Road, by Theodore White, Parrish, and Let No Man Write My Epitaph.

[13] In October 1959, Columbia Pictures announced that Callan was one of 11 young names the studio would be building up—the others were James Darren, Evy Norlund (Darren's soon-to-be wife), Glenn Corbett, Carol Douglas, Jo Morrow, Margie Regan, Joby Baker, Rian Garrick, Joe Gallison, and Steve Baylor.

[19] Callan was a juvenile delinquent threatening Alan Ladd in 13 West Street (1962), then was reunited with Walley in the family comedy, Bon Voyage!

[25] In 1968, he co-starred as "Bill Calhoun" in the ABC-TV production of Cole Porter's Kiss Me, Kate starring Robert Goulet and Carol Lawrence.

[27] His additional television credits include Breaking Point, Hazel, That Girl, The Name of the Game, The Mary Tyler Moore Show, Ironside, Marcus Welby, M.D., Griff, McMillan & Wife, Barnaby Jones, 12 O'Clock High, Quincy, M.E., Charlie's Angels, Simon & Simon, Fantasy Island, The Love Boat, The Bionic Woman, four episodes of Murder, She Wrote, and eight episodes of Love, American Style.

[30] He died of pneumonia on October 10, 2022, at the Motion Picture & Television Country House and Hospital in Woodland Hills, California, at the age of 86.