Thomas Glenn Langan, a talented individual, spent most of his early life in his hometown of Denver, Colorado, where he was raised. Following his education, he embarked on a journey in the world of acting, performing local in repertory companies before making his way to New York. In 1942, he took to the stage on Broadway, appearing opposite the renowned actress Luise Rainer in J.M. Barrie's "Kiss for Cinderella". His exceptional performance garnered critical acclaim, leading to a contract with 20th Century Fox the following year.
With many leading men away serving in the war, Langan filled the gap in several high-profile productions. He was often cast as a stalwart professional man, showcasing his versatility in films such as Margie (1946),where he played a charming French professor, and Dragonwyck (1946),where he portrayed a devoted young doctor fighting against the evil schemes of Vincent Price. Additionally, he appeared as one of the psychiatrists caring for Olivia de Havilland's character in The Snake Pit (1948).
Langan also found success in escapist adventure films, starring as a square-jawed privateer captain in Forever Amber (1947) and as Edmund Dantes, the descendant of the original protagonist of Alexandre Dumas, in the modernized Treasure of Monte Cristo (1949). Despite these boosts to his career, his popularity began to wane by the early 1950s.
In the following decade, Langan continued to appear on television and eventually achieved a cult status for his role as the irradiated 60-foot hero in Bert I. Gordon's often hilarious sci-fi film, The Amazing Colossal Man (1957). After winding down his screen career in the 1960s, Langan reinvented himself as a successful real estate salesman. He was married to the actress Adele Jergens for forty years, a testament to the enduring power of love and partnership.