Michael Lembeck provided the English voice for the character Scott Masterson in the 1987 animated film Ultraman: The Adventure Begins. In this American-Japanese co-production from Hanna-Barbera and Tsuburaya Productions, his character is the young protagonist of the story and a member of the stunt pilot trio known as the Flying Angels who gains the ability to transform into the giant superhero Ultraman Scott.

This voice role in the Ultraman franchise appears to be an isolated credit within the specific context of anime or animated voice acting. Information available indicates that Michael Lembeck's primary and extensive career has been as a television director and as an on-screen actor. He is notably recognized for directing numerous episodes of the popular television series Friends. His voice acting work is limited, with his role in Ultraman: The Adventure Begins standing as a primary example, alongside an uncredited voice role in the Pound Puppies series and a voice acting credit in the first season of The Smurfs.