Norman Jay "Dack" Rambo (November 13, 1941 – March 21, 1994) was an American actor, widely known for his role as Walter Brennan's grandson Jeff in the series The Guns of Will Sonnett, as Steve Jacobi in the soap opera All My Children, as cousin Jack Ewing on Dallas, and as Grant Harrison on the soap opera Another World.

Norman Jay Rambo was born on November 13, 1941,[1] in Earlimart, California, to William Lester and Beatrice A.

During the 1970s and 1980s, he made guest appearances on Marcus Welby, M.D., House Calls, Wonder Woman, The Rookies, Charlie's Angels, Fantasy Island, The Love Boat, Hotel and Murder, She Wrote.

Rambo may be best remembered on television for playing Jack Ewing in 51 episodes of the soap opera Dallas from 1985 to 1987.

Rambo also played Wesley Harper on the 1984 short-lived TV series soap opera Paper Dolls.

Rambo then made his HIV infection and his bisexuality public, revealing that he had been in relationships with both men and women since his 20s.