Chris Diamantopoulos

Christopher Diamantopoulos ( (Khristóforos Diamantópoulos); born May 9, 1975) is a Canadian actor. He played Russ Hanneman in the HBO series Silicon Valley and starred in the film The Three Stooges as Moe Howard, and the TV series Good Girls Revolt. He voiced Mickey Mouse in the eponymous television series, The Wonderful World of Mickey Mouse and the short film Once Upon a Studio; for the former, he received two Emmy Award nominations, and worked on multiple characters in the Prime Video animated series Invincible.

Early life Diamantopoulos was born on May 9, 1975, to Greek immigrant parents in Toronto, Ontario, Canada. He grew up splitting his time between Canada and Greece. His mother is from Ioannina and his father is from Peloponnese. He is a practicing member of the Greek Orthodox Church, and a fluent Greek speaker.

Career Diamantopoulos began his career working in television commercials and professional theatre productions at the age of nine. At the age of eighteen, he left home to work in a series of American national tours. A short time later, he worked on Broadway, where he played leading parts in The Full Monty (2002) and Les Misérables (2003). Diamantopoulos attended East York Collegiate Institute.

He played Robin Williams in Behind the Camera: The Unauthorized Story of Mork & Mindy alongside Erinn Hayes. He has guest-starred in several series, including Kevin Hill, Charmed, The Sopranos, The Office, Nip/Tuck and Boston Legal. He played the interior decorator in the miniseries The Starter Wife.

He had a recurring role on State of Mind and guest-voiced on American Dad! in 2009.

On the eighth season of 24, he played U.S. president Allison Taylor's Chief of Staff Rob Weiss. He played Frank Sinatra in The Kennedys. Diamantopoulos played Moe Howard in the 2012 film The Three Stooges.

In 2013, Diamantopoulos voiced Mickey Mouse in the television series with the same name, and its follow-up series The Wonderful World of Mickey Mouse. Although Bret Iwan has voiced Mickey in most media following Wayne Allwine's death from diabetes in May 2009, Diamantopoulos voiced the character in retro-styled productions, giving Mickey Mouse a voice similar to that of Walt Disney. Most recently, he reprised the character in the 2023 short film Once Upon a Studio, made to celebrate the centennial of The Walt Disney Company and Walt Disney Animation Studios.

He had recurring roles on the NBC sitcoms Up All Night, as Maya Rudolph's on and off lover, Julian; The Office, as Brian, a former member of the show's documentary film crew (alongside Zach Woods, who he would later work again with on Silicon Valley); and on Arrested Development, as Marky, Lindsay's face-blind environmentalist boyfriend.

He appeared in the television sitcom Episodes playing the part of TV network boss Castor Sotto, and Mr. Chris in the television adaptation of About a Boy.

In 2017, Diamantopoulos starred in the musical Waitress on Broadway.

On October 11, 2018, it was revealed by TVLine that he would have a role in the spin-off pilot for the situation comedy The Middle playing Sue Heck's mercurial, charming and rich boss Nick.

He has an upcoming starring role alongside Tom Blyth in the comedy Discussion Materials adapted from Bill Keenan's memoir of the same name.

As of 28 of August 2026 he has a role as an agent, in the Apple TV series “Dark matter” in season 2.

Personal life He met Becki Newton at a subway station in New York City. They married in 2005. The couple have four children: a boy born in November 2010, a girl born in 2014, a girl born in 2020, and a girl born in 2022.

Filmography Film Year Title Role Notes 2000 The Adulterer Dave 2001 Drop Dead Roses Trevor 2006 Wedding Daze William 2007 Three Days to Vegas Laurent Perrier Protagonist Ancient Greek Narrator (voice) Documentary 2009 Under New Management Robert Monte 2012 The Three Stooges Moe Howard 2013 The Art of the Steal Guy de Cornet Empire State Spiro 2014 Dr. Cabbie Colin Hill 2015 Man Vs. Doug Batman Unlimited: Animal Instincts Green Arrow (voice) Direct-to-video Batman Unlimited: Monster Mayhem 2016 Batman Unlimited: Mechs vs. Mutants 2018 The Truth About Lies Eric Stone 2021 Justice Society: World War II Steve Trevor (voice) Direct-to-video Diary of a Wimpy Kid Frank Heffley (voice) 2025Diary of a Wimpy Kid: The Last StrawFrank Heffley (voice)

Television Year Title Role Notes 2002 Law & Order Chris Wilson Episode: "Open Season" 2004 American Dreams Coach Tom Berg 2 episodes Charmed Inspector Davis Episode: "Charmed Noir" DeMarco Affairs Ernesto Boticelli Television film Frasier Steve Episode: "And Frasier Makes Three" Kevin Hill Gil Hacker Episode: "Love Don't Live Here Anymore" Nip/Tuck Chad Myers Episode: "Erica Noughton" Third Watch Hansen Episode: "Black and Blue" 2005 Behind the Camera: The Unauthorized Story of Mork & Mindy Robin Williams Television film Into the Fire NTSB Agent #2 Television film Jake in Progress Cesar Episode: "Stand by Your Man" 2006 52 Fights Rob Television film Boston Legal Douglas Karnes Episode: "Whose God Is It Anyway?" Jason Barone Episode: "The Fleshy Part of the Thigh" 2006–present American Dad! Various voices 38 episodes 2007 CSI: Crime Scene Investigation Oliver Zarco Episode: "The Chick Chop Flick Shop" Raines Andrew Carver Episode: "Closure" Rodney 6 episodes State of Mind Phil Erikson 6 episodes 2008 Eli Stone Jake McCann Episode: "Wake Me Up Before You Go-Go" The Starter Wife Rodney 10 episodes 2010 24 Rob Weiss 12 episodes 2011 Frank Sinatra Episode: "Bobby's War" 2011–2012 Up All Night Julian 4 episodes 2012 WWE Raw Moe Howard Episode #20.15 Made in Hollywood Moe Episode #7.24; archive audio only 2013 Arrested Development Marky Bark, Divine Spirit 7 episodes Community Reinhold Episode: "Alternative History of the German Invasion" Doctor Lollipop Dr. Lollipop (voice) Pilot Chad Episode: "The Birds of Granby" Brian 5 episodes 2013–2018 Family Guy Parker Stanton, Frank Maxwell, Stryker Foxx, Millipede, Dean Martin, Mickey Mouse (voice) 7 episodes 2013–2019 Mickey Mouse Mickey Mouse, additional voices 94 episodes 2014 Hannibal Clark Ingram 2 episodes High Moon Ian Television film 2014–2015 About a Boy Mr. Chris 9 episodes Episodes Caster Sotto 8 episodes 2015 Batman Unlimited Green Arrow (voice) 2 episodes 2017 Old Man Parker Television film Click, Clack, Moo: Christmas at the Farm Mouse (voice) Television film Green Eggs and Ham Bean Counter (voice) Episode: "Here" 2020–2023 Mickey Mouse, additional voices 2021–present Invincible Donald Ferguson, Doc Seismic, Isotope (voice) The Harper House Dr. Morocco (voice) 7 episodes Inside Job Robotus/Alpha-Beta (voice) 6 episodes The Ghost and Molly McGee Ezekiel "Tug" Tugbottom (voice) Episode: "Monumental Disaster" Zombies: The Re-Animated Series Sasquatch (voice) Episode: "Reality Check, Please!/Their Guy Sasquatch" 2024–presentDark MatterAgent Mitchel MacNamaraSeason 2 2025 The Terminal List: Dark Wolf Aaron Fuller 2 episodes 2025–present The Bad Guys: The Series Mr. Snake (voice) 19 episodes 2026 Star Wars: Maul – Shadow Lord Looti Vario

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Theme park attractions Year Title Role Notes 2020Mickey & Minnie's Runaway RailwayMickey MouseVoice