His biggest successes occurred during the 1940s in films such as Cat People (1942), Hitler's Children (1943), This Land Is Mine (1943), Three Russian Girls (1943), Youth Runs Wild (1944), The Curse of the Cat People (1944), The Spiral Staircase (1946), Nora Prentiss (1947), Magic Town (1947), My Foolish Heart (1949), The Fountainhead (1949), and The Damned Don't Cry! (1950). He continued acting in films such as Comanche (1956), Sayonara (1957), Party Girl (1958), The Mugger (1958), Imitation General (1958), The Badlanders (1958), This Earth Is Mine (1959), Strangers When We Meet (1960), Susan Slade (1961), The Balcony (1963), A Distant Trumpet (1964), Youngblood Hawke (1964), The Young Lovers (1964), The Trouble with Angels (1966), A Covenant with Death (1967), Games (1967), The Money Jungle (1968), Kona Coast (1968), Assignment to Kill (1968), Death of a Gunfighter (1969), The Games (1970), Pete 'n' Tillie (1972), Die Sister, Die! (1972), Lost Horizon (1973) and Billy Jack Goes to Washington (1977).