Project Blue Book Operation Mainbrace (Season 2, Episode 10)
TV-14
TV Episode | 43 min | Drama, Mystery, Sci-Fi

Project Blue Book

Operation Mainbrace (Season 2, Episode 10)

TV-14

TV Episode | 43 min | Drama, Mystery, Sci-Fi

UFOs and USOs begin plaguing a massive naval exercise on the border of Russian waters, and Hynek and Quinn soon realize it's up to them to stop a rogue Admiral from starting World War III.

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Cast	Add Cast
28 cast members

Name	Known for
Aidan Gillen Dr. J. Allen Hynek Dr. J. Allen Hynek See fewer	Game of Thrones (2011)
Michael Malarkey Captain Michael Quinn Captain Michael Quinn See fewer	Project Blue Book (2019)
Laura Mennell Mimi Hynek Mimi Hynek See fewer	Project Blue Book (2019)
Ksenia Solo Susie Miller Susie Miller See fewer	Black Swan (2010)
Michael Harney General Hugh Valentine (as Michael J. Harney) General Hugh Valentine (as Michael J. Harney) See fewer	Soy Nero (2016)
Neal McDonough General James Harding General James Harding See fewer	Minority Report (2002)
Ian Tracey William William See fewer	Continuum (I) (2012)
Caspar Phillipson John F. Kennedy John F. Kennedy See fewer	Mission: Impossible - Fallout (2018)
Derek Smith Commander Commander See fewer	What/If (2019)
Rene Rosado Lieutenant Lieutenant See fewer	National Anthem (2023)
Colm Feore Admiral Admiral See fewer	Chicago (2002)
Jill Morrison Faye Faye See fewer	Mean Girls (2004)
Zhan Wang Turi Turi See fewer	The Brothers Sun (2024)
Harrison MacDonald Master Chief Harris Master Chief Harris See fewer	The Predator (2018)
Philip Prajoux Master Reed Master Reed See fewer	The Night Agent (2023)
David Kaye Ensign Burke Ensign Burke See fewer	3000 Miles to Graceland (2001)
Thomas Nicholson Gerald Gerald See fewer	Yellowjackets (2021)
Sloan Baron Samara Samara See fewer	Project Blue Book (2019)
Deb Sears Olga (as Debra Sears) Olga (as Debra Sears) See fewer	Alaska Daily (2022)
Christopher Pearce Commander Commander See fewer	A Dog's Purpose (2017)
Ian Collins Sonar Technician Sonar Technician See fewer	Snowpiercer (2020)
Dan Bates Radar Technician Radar Technician See fewer	Project Blue Book (2019)
Shaun Mazzocca Seaman #1 Seaman #1 See fewer	The Boys (2019)
Tyler Alderman Seaman #2 Seaman #2 See fewer	To All the Boys: P.S. I Still Love You (2020)
Denzel Brooks Seaman #3 Seaman #3 See fewer	Speak Up! (2020)
Spencer Graham Seaman #4 Seaman #4 See fewer	Exhibit Man (2019)
Andre Anthony Seaman #5 Seaman #5 See fewer	The Night Agent (2023)
Josh Bogert Young Sailor (uncredited) Young Sailor (uncredited) See fewer	Backstage (I) (2016)