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18-5-4's primary photo

18-5-4 (Season 2, Episode 21)

TV-14

TV Episode | 43 min |Crime, Drama, Mystery

A brilliant mathematician is shot and killed by a clown, and the team discovers that he was working on a priceless code-breaking device.

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18 cast members

Name	Known for
Simon Baker Patrick Jane Patrick Jane See fewer	Margin Call (2011)
Robin TunneyTeresa Lisbon Teresa Lisbon See fewer	The Craft (1996)
Tim Kang Kimball Cho Kimball Cho See fewer	Rambo (2008)
Owain Yeoman Wayne Rigsby Wayne Rigsby See fewer	Emergence (2019)
Amanda RighettiGrace Van Pelt Grace Van Pelt See fewer	Captain America: The First Avenger (2011)
Lucy DavisDaphne Valiquette Daphne Valiquette See fewer	Wonder Woman (2017)
Rich HutchmanRafe Valiquette Rafe Valiquette See fewer	Deja Vu (2006)
Scott Menville Alec Mosca Alec Mosca See fewer	Teen Titans (2003)
Evan PetersOliver McDaniel Oliver McDaniel See fewer	X-Men: Apocalypse (2016)
Fisher StevensTolman Bunting Tolman Bunting See fewer	Short Circuit (1986)
Cameron Bender Concierge Concierge See fewer	Just Roll with It (2019)
Ronald William LawrencePolice Chief Hambrick Police Chief Hambrick See fewer	The Ring (2002)
Mike Rock Clown Clown See fewer	Chelsea Lately (2007)
Dave EngferNoah Valiquette Noah Valiquette See fewer	Race to Witch Mountain (2009)
Hana Hwang Annika Annika See fewer	Beginners (2010)
Robert BuckinghamCBI Office Agent (uncredited) CBI Office Agent (uncredited) See fewer	The Hunt for Red October (1990)
Carly Jordan PancherKid (uncredited) Kid (uncredited) See fewer	Passions (1999)
Keith SaltojanesClown (uncredited) Clown (uncredited) See fewer	National Lampoon's Final Edition Radio Hour (2015)