Larson found the role of cub reporter Jimmy Olsen on The Adventures of Superman to be a handicap, because he became typecast as a naive young man. This caused him to do little acting after the show ended in 1958, and instead he focused on behind-the-scenes work, such as writing and production. Larson was always willing to sit for interviews about the Superman series and his connection to it, and in recent years had a number of cameos that paid subtle tribute to his character and the series, including a 1991 episode of the TV series Superboy, alongside Noel Neill, who played Lois Lane in Adventures of Superman, and an episode of Lois & Clark: The New Adventures of Superman as an aged Jimmy Olsen in the episode "Brutal Youth", first broardcast on October 20, 1996.