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.

Filmography

• 2026One Night Only — Tejan
• Demascus — Demascus
• 2025Hamilton — Hercules Mulligan / James Madison
• 2024Molli and Max in the Future — Moebius
• 2023American Fiction — Van Go Jenkins
• Scavengers Reign — Station Chief (voice)
• 2023The Family Meeting — Zach
• 2021A Quiet Place Part II — Police Officer
• 2021Generation Wrecks
• 2020Elegies for Angels, Punks and Raging Queens — Paul
• Jurassic World Camp Cretaceous — Mr. Gold (voice)
• Station 19 — Dean Miller
• 2018The Super — Cal
• Tom Clancy's Jack Ryan — Adebayo 'Ade' Osoji
• 2017Anna & the Asteroid — Ben
• 2017Person to Person — Lester
• She's Gotta Have It — Slick Willie
• Billions — Leon
• Ballers — Anthony
• BoJack Horseman — Mike (voice)
• 2013Thanks for Sharing — Lou
• Blue Bloods — Damon Williams
• Grey's Anatomy — Dean Miller
• Robot Chicken — The Night King / Grim Reaper / Swan (voice)
• Law & Order: Special Victims Unit — Cash Lewis
• Law & Order — Mike Keyz

Appearances as themselves (5)

• 2025Hamilton: Reuniting the Revolution — Self
• Some Good News — Self
• 2020The Undefeated Presents: Hamilton In-Depth — Self
• 2016Hamilton's America — Self
• Celebrity Family Feud — Self