Film
Lund was vice president of the Screen Actors Guild from 1950 to 1959.
Lund's first film had him as star To Each His Own (1946) with Olivia de Havilland for Paramount, in which he played dual roles. It was written and produced by Charles Brackett and was critically and commercially successful.
Paramount cast Lund as Betty Hutton's leading man in The Perils of Pauline (1947), another hit. He was one of many Paramount stars who made cameos in Variety Girl (1947). In the Billy Wilder film A Foreign Affair (1948), Lund was a romantic lead for Marlene Dietrich and Jean Arthur.
He supported Edward G. Robinson in Night Has a Thousand Eyes (1948). Brackett gave him the lead in a comedy Miss Tatlock's Millions (1948). He played Alfonso I d'Este, Duke of Ferrara, in Bride of Vengeance (1949) alongside Paulette Goddard and MacDonald Carey, following the suspension of Ray Milland; the film was largely ill-received by critics.
Hal Wallis used him in My Friend Irma (1949) as Al, Irma's (Marie Wilson) boyfriend. The film is remembered, however, for introducing Martin and Lewis (Jerry Lewis had meant to play the role of Al, but realized he was miscast).
He supported Barbara Stanwyck in No Man of Her Own (1950) and reprised his performance as Al in My Friend Irma Goes West (1950). Paramount announced Union Station for him, but William Holden ended up playing it.
Lund played the false love interest in Duchess of Idaho (1950) for MGM; the film featured Esther Williams and Van Johnson in the leads.
Brackett gave him another good role in The Mating Season (1951), alongside Gene Tierney, Miriam Hopkins, and Thelma Ritter. He was Joan Fontaine's leading man in Darling, How Could You! (1951).
Paramount wanted to lend him to Universal for Week-End with Father, but he refused and was put on suspension.
Lund left Paramount for Universal, where he was Ann Sheridan's leading man in Steel Town (1952), replacing Jeff Chandler.
He co-starred with Chandler in The Battle at Apache Pass (1952) and Scott Brady in Bronco Buster (1952), then was reunited with Sheridan in Just Across the Street (1952).
He was top-billed in Woman They Almost Lynched (1953), a Western.
Lund played another false love interest at MGM Latin Lovers (1953) with Lana Turner.
He made a series of Westerns: White Feather (1955), at Fox, second-billed to Robert Wagner; Five Guns West (1955), the first film directed by Roger Corman, at ARC; Chief Crazy Horse (1955) with Victor Mature at Universal; and Dakota Incident (1956) with Linda Darnell at Republic.
Around this time, he was also in a war film at Columbia, Battle Stations (1956), and he played Grace Kelly's fiancé George in MGM's High Society, the musical remake of The Philadelphia Story.
He was top-billed in Affair in Reno (1957) for Republic. His last performances included support performances in The Wackiest Ship in the Army (1960) at Columbia and If a Man Answers (1962) at Universal.