
Okieriete Onaodowan
Aug 16, 1987 (38 years old) in Newark, New Jersey, USA
Okieriete "Oak" Onaodowan (born August 16, 1987) is an American actor, known for originating the roles of Hercules Mulligan and James Madison in the 2015 musical Hamilton, and the role of Dean Miller in the ABC drama and Grey's Anatomy spin-off series Station 19.
Known For

Law & Order: Special Victims Unit
Cash Lewis

Grey's Anatomy
Dean Miller

Law & Order
Mike Keyz

Blue Bloods
Damon Williams

Billions
Leon

BoJack Horseman
Mike (voice)

Station 19
Dean Miller

Robot Chicken
The Night King / Grim Reaper / Swan (voice)

Tom Clancy's Jack Ryan
Adebayo 'Ade' Osoji

Ballers
Anthony
Credits
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Hamilton 2025Hercules Mulligan / James Madison★ 6.6
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Demascus 2025Demascus★ 8
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Moebius★ 6.4
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American Fiction 2023Van Go Jenkins★ 7.3
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Scavengers Reign 2023Station Chief (voice)★ 8.6
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The Family Meeting 2023Zach★ 2
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Generation Wrecks 2021★ NR
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Police Officer★ 7.5
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Paul★ NR
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Self★ 7
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The Super 2018Cal★ 5.1
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Adebayo 'Ade' Osoji★ 7.7
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Station 19 2018Dean Miller★ 8.2
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She's Gotta Have It 2017Slick Willie★ 6.4
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Anna & the Asteroid 2017Ben★ NR
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Person to Person 2017Lester★ 5.2
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Hamilton's America 2016Self★ 6.6
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Billions 2016Leon★ 7.7
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Ballers 2015Anthony★ 6.8
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Self★ 7.8
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BoJack Horseman 2014Mike (voice)★ 8.5
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Thanks for Sharing 2013Lou★ 5.9
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Blue Bloods 2010Damon Williams★ 7.8
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Grey's Anatomy 2005Dean Miller★ 8.2
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Robot Chicken 2005The Night King / Grim Reaper / Swan (voice)★ 7.6
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Cash Lewis★ 7.9
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Law & Order 1990Mike Keyz★ 7.4