Lou Hirsch is an American actor, voice actor, and writer, known for his versatile career across film, television, and theatre. He is internationally known primarily as the original voice of the character Baby Herman in the 1988 film *Who Framed Roger Rabbit*. His work is closely linked to British theatre, where he co-created and starred in the successful musical *Pump Boys and Dinettes*. For this performance, he received a Tony Award nomination for Best Featured Actor in a Musical and a Laurence Olivier Award nomination for Best Actor in a Musical. His other notable theatre roles include Riff Raff in *The Rocky Horror Show*. On the big screen, he has appeared in films such as *Superman III* (1983) and *Thunderbirds* (2004), and has also participated in numerous television productions, establishing himself as a multifaceted artist active for decades.