Steve Forrest was a strapping actor known to television viewers as Lt. Dan Harrelson on the 1970s action series "S.W.A.T."

Mr. Forrest divided his career between the large and small screens. His early film credits include "So Big" (1953), based on the Edna Ferber novel, in which he played the adult son of Jane Wyman and Sterling Hayden; "Heller in Pink Tights" (1960), directed by George Cukor, in which he portrayed Anthony Quinn's rival for Sophia Loren's affections; and "The Longest Day" (1962), in which he played an American captain confronting D-Day.

In the 1950s and for decades afterward, Mr. Forrest played guest parts on a string of television shows, including "The Twilight Zone," "Bonanza," "Ironside," "Gunsmoke" and "Dallas," on which he had the recurring role of the poseur Wes Parmalee.

His other film credits include "Prisoner of War" (1954), opposite Ronald Reagan; "Flaming Star" (1960), in which he played Elvis Presley's half-brother; "North Dallas Forty" (1979); and "Mommie Dearest" (1981).

On Broadway, Mr. Forrest portrayed an Ivy League-educated aspiring prizefighter in the musical comedy The Body Beautiful, which ran for 60 performances in 1958.

Source: The New York Times