On Broadway, Ackroyd appeared in Unlikely Heroes, a 1971 production of three plays based on the stories of Philip Roth; and Children of a Lesser God, in which he replaced John Rubinstein as the lead character, James Leeds, in 1981. Since the late 1990s and into the 2000s, Ackroyd has narrated documentary television series like History's Mysteries and UFO Files: "Alien Engineering".
