Okieriete "Oak" Onaodowan[1] (/ɒˌkɛdiˈɛteɪ oʊˈnaʊdəwɑːn/ o-KED-ee-ET-ay oh-NOW-də-wahn[2][3]) is an American actor and singer known for his work in musical theatre and television.

On the stage, he's known for originating the dual roles of Hercules Mulligan and James Madison in the 2015 Broadway musical Hamilton.

On television, he's known for the role of Dean Miller in the ABC drama and Grey's Anatomy spin-off series, Station 19.

[8] Onaodowan had roles in Rocky the Musical and Cyrano de Bergerac on Broadway and was in the ensemble of the first national tour of American Idiot.

[13] He also had several screen credits, including Lou in the feature film Thanks for Sharing and roles in the TV series Gravity and Blue Bloods.