Cameron Monaghan
Biography
Cameron Riley Monaghan (born August 16, 1993) is an American actor and model. The accolades he has received include nominations for a BAFTA Award and a Critics' Choice Television Award. Monaghan is known for his roles as Ian Gallagher in the Showtime comedy-drama series Shameless and as twins Jerome and Jeremiah Valeska, who serve as the Joker's origins on the DC Comics-based TV series Gotham. He also portrayed Cal Kestis in the action-adventure game Star Wars Jedi: Fallen Order and its sequel Jedi: Survivor. Monaghan began his career as a child model at the age of three and as a child actor at the age of seven. Description above from the Wikipedia article Cameron Monaghan, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known For

Law & Order: Special Victims Unit

NCIS

The Mentalist

Law & Order

Criminal Minds

Criminal Minds

Shameless

Monk
All Movies (31)
- TRON: Ares2025 · as Caius
- FOXBODY2025 · as Clyde
- My Love Affair with Marriage2023 · as Sergei (voice)
- Paradise Highway2022 · as Special Agent Finley Sterling
- Shattered2022 · as Chris Decker
- DC Showcase: Kamandi: The Last Boy on Earth!2021 · as Kamandi (voice)
- Joker: Put on a Happy Face2020 · as Jeremiah Valeska/The Joker (archive footage)
- Built by Jedi - The Making of Star Wars Jedi: Fallen Order2019 · as Self
- The Death and Return of Superman2019 · as Connor Kent / Superboy (voice)
- Reign of the Supermen2019 · as Connor Kent / Superboy (voice)
- Anthem of a Teenage Prophet2019 · as Luke Hunter
- The Year of Spectacular Men2018 · as Ross
- Amityville: The Awakening2017 · as James Walker
- The Giver2014 · as Asher
- Jamie Marks Is Dead2014 · as Adam McCormick
- Mall2014 · as Jeff
- Vampire Academy2014 · as Mason Ashford
- 2nd Serve2012 · as Jake
- Prom2011 · as Corey Doyle
- Another Harvest Moon2010 · as Jack
- Safe Harbor2009 · as Larry Parker
- The Three Investigators in The Secret of Terror Castle2009 · as Bob Andrews
- Dog Gone2008 · as Dexter
- The Three Investigators in The Secret of Skeleton Island2007 · as Bob Andrews
- The Santa Clause 3: The Escape Clause2006 · as Traffic Cop #1
- Click2006 · as Kevin O'Doyle
- Brothers in Arms2005 · as Timmy
- The Music Man2003 · as Winthrop Paroo
- The Wishing Stone2002 · as Alex
- Adrenaline Rush: The Science of Risk2002 · as student (uncredited)
- I Passed This Way—
All TV Shows (28)
- LEGO Star Wars: Rebuild the Galaxy - Pieces of the Past2025 · as Cal Kestis (voice)
- Shameless Hall of Shame2020 · as Ian Gallagher
- Acting for a Cause2020 · as Ferris Bueller
- A Little Late with Lilly Singh2019 · as Self
- Love Daily2018 · as Aaron
- Mercy Street2016 · as Tom Fairfax
- Gotham2014 · as Jerome Valeska
- Gotham2014 · as Jeremiah Valeska
- Gotham2014 · as Joker
- Corey and Lucas for the Win2011 · as Corey
- Shameless2011 · as Ian Gallagher
- Terriers2010 · as Cody Grice
- Rizzoli & Isles2010 · as Jonathan McKenna
- James Gunn's PG Porn2008 · as Young Boy 1
- The Mentalist2008 · as Elliot
- Fringe2008 · as Tyler Carson
- Criminal Minds2005 · as (archive footage)
- Criminal Minds2005 · as Jeffrey Charles
- Threshold2005
- Avatar: The Last Airbender2005 · as Twin 1 (voice)
- Numb3rs2005 · as Todd
- Ned's Declassified School Survival Guide2004 · as Palmer Noid
- NCIS2003 · as Nick Peyton
- Monk2002 · as Danny Cooper
- Malcolm in the Middle2000 · as Chad
- Law & Order: Special Victims Unit1999 · as Eddie Sandow
- Law & Order1990 · as Eddie Sandow
- Bosch: Start of Watch— · as Harry Bosch