In early 1991 Hamlin appeared in the music video and sang in the choir on the song "Voices That Care" which was made in support of U.S. troops who were stationed in the Middle East and involved at that time in Operation Desert Storm. He then appeared in two 1992 episodes of "", in each episode as a separate character. In the episode "Joker's Wild,” Hamlin played the role of Cameron Kaiser, a ruthless businessman who sinks all his money into a casino, then counts on the Joker to destroy it in order to collect on the insurance policy from a reputable company, and in the other episode, "Moon of the Wolf,” he provided the voice of Anthony Romulus, a greedy athlete who takes a potion to enhance his skills, only to realize too late that it has transformed him into a werewolf. In 1995, he participated in the documentary film, "The Celluloid Closet" where he discussed his role in the film "Making Love".