After 35 years as a professional actor, Louis Herthum had a breakthrough year in 2017, a year that saw him upped to a series regular for season 2 of HBO's critically acclaimed "Westworld." Herthum made a big impact with his memorable turn on "Westworld," as Peter Abernathy, father to Dolores (Evan Rachel Wood) and one of the first robots to experience programming glitches in the series first season.

Herthum began his acting career in his hometown of Baton Rouge, Louisiana. His first "big break" came in 1991 when he joined the cast of the long-running hit CBS series "Murder, She Wrote," starring as Deputy Andy Broom opposite Angela Lansbury for the show's final five seasons. His recurring television roles include his portrayal of Omar in Netflix's "Longmire," and werewolf pack leader JD in season 5 of HBO's supernatural drama "True Blood." Herthum has appeared in over 40 stage productions, dozens of commercials and combined over 100 films and TV shows.

In early 1996 Louis added "Producer" to his resume, producing his first feature film, "Favorite Son". Since then Louis has, through his Louisiana based production company Ransack Films, produced a total of five narrative features, including the award winning thriller, "Red Ridge" and one feature length documentary, "The Season Before Spring" (also an award winner) about the first post-Katrina Mardi Gras in 2006.

Louis is avid art & antique collector and owns a 1968 Ford Mustang Fastback which he has restored in homage to the film that inspired him to go into show business - "Bullitt" with Steve McQueen.

Upgrade membership to get access to client roster details.

Upgrade to see how you're connected to other professionals through your credits.

Upgrade membership to unlock contact and representation information.

Upgrade membership to unlock box office data.

Upgrade membership to add and manage your images.

Select your profession and Known For titles

Access full contact and representation details

Find the right people with Discover advanced search

View contact info and get hired with IMDbPro

Add your primary image and get discovered

Find contact info for agents and management

View connections to industry professionals

See who's working on in-development titles

Upgrade your membership to view client lists.

Upgrade membership to access historical STARmeter charts for yourself and other professionals.

Get insights on who this person is frequently credited with.

Upgrade membership to add and manage demo reels.

Louis Herthum as Peter Abernathy in Westworld.

Louis Herthum on the red carpet at the True Blood season five premiere. 

Louis Herthum on the Carpet at the Westworld premiere. 

Louis Herthum attends the Entertainment Weekly's Screen Actors Guild Award Celebration at Chateau Marmont on January 20, 2018 in Los Angeles.

Louis Herthum, Harrison Sloan Gilbertson, Chris Coy, Jared Bankens, and Duke Davis Roberts in Haptic Drift (2022)

Louis Herthum and Evan Rachel Wood in Westworld (2016)

Chloë Grace Moretz in The Peripheral (2022)

Deputy Andy Broom / Wilber / Deputy Kruger

Angela Lansbury in Murder, She Wrote (1984)

Louis Herthum

Louis Herthum

Known for

Credits summary

Verified affiliations

Photos129

Videos39

STARmeter

Contacts