In 1982, Hirsch made his television debut as Sgt. Hymie Stutz in the
LWT mini-series ''
We'll Meet Again about USAF personnel stationed in a English village during World War II. On television he has appeared in Whoops Apocalypse, Dempsey and Makepeace, The Equalizer, The New Statesman, Stay Lucky
, Paul Merton: The Series, Jeeves and Wooster, Takin' Over the Asylum, The Tales of Para Handy and Operation Good Guys. Between 1982 to 1986, Hirsch made recurring appearances as part of the ensemble cast in the sketch show The Kenny Everett Television Show.'' Hirsch's film roles include
The Lonely Lady (1983),
Superman III (1983),
Insignificance (1985),
The American Way (1986),
Haunted Honeymoon (1986),
Wild West (1992)
Tom & Viv (1994) and
Thunderbirds (2004). Hirsch is best known for voicing the adult voice of Baby Herman in
Who Framed Roger Rabbit (1988). He originally auditioned for a live action role in the film, but was eventually hired to voice Herman, despite having no prior experience as a voice actor. He described the voice as a combination of
Wallace Beery and his (British) friends' imitation of him. Following the film's release, Hirsch reprised the role in three animated shorts, including
Tummy Trouble (1989),
Roller Coaster Rabbit (1990) and
Trail Mix-Up (1993). In 1991, Hirsch appeared in a rare lead role as Raymond Gold in the
ScreenPlay episode "The Fallout Guy", an immature 39-year-old fantasist who works as a chemical engineer, whom also has a double life as a spy, selling nuclear secrets to the Russians; the original play was loosely based on the life of
Harry Gold. The episode subsequently won the 1990 Radio Times Drama Award. During the nineties, he had recurring roles in a number of children's programs, including
Gophers!,
Kappatoo and
The Tomorrow People. He appeared as alien policeman Officer Silas Romek in
Space Precinct, produced by
Gerry Anderson, which was one of the most expensive TV shows ever produced in the UK, using a combination of
science fiction and
police procedural. Between 2000 and 2006, Hirsch appeared in all six series of
My Hero as Arnie Kowlaski, a former superhero who was stripped off his powers after abusing them, and also the cousin of George Sunday (aka Thermoman). In 2011, Hirsch appeared as Wallace in
Episodes, a forgetful security guard who works at the
Beverley Hills estate where Sean and Beverly live during the course of the first series. == Stage work ==