Noted character actor of distinctly American persona, Welden's cinematic journey began with several films in Britain before he returned to the United States to establish a career as a recognizable figure in American movies.
Standing at a compact height, with a balding head and a robust physique reminiscent of a tank, Welden's streetwise demeanor and distinctive Damon Runyan accent made him a natural fit for playing a wide range of gangsters and small-time hoods, often with a comedic twist.
Throughout his career, Welden made a lasting impression on the silver screen, taking on various roles that showcased his versatility as an actor. One of his most notable performances was as the henchman who mercilessly beats Bette Davis in the 1937 film Marked Woman, followed by his role as the assassin who gunned down Elia Kazan in City for Conquest (1940).
In addition to his acting career, Welden also had a successful sideline as the owner of Nutcorn, a popular confectionery in Beverly Hills. After retiring from acting in his sixties, Welden left behind a legacy as a familiar face in American movies, known for his memorable performances as crooks on the classic television series Adventures of Superman (1952).