Graham Moore Director, Screenwriter Mark Rylance Leonard Actor Dylan O'Brien Richie Actor Zoey Deutch Mable Actor Johnny Flynn Francis Actor Nikki Amuka-Bird Violet Actor Simon Russell Beale Roy Actor Alan Mehdizadeh Monk Actor Johnathan McClain Screenwriter, Executive Producer Ben Browning Producer Amy Jackson Producer Scoop Wasserstein Producer Alison Cohen Executive Producer Ashley Fox Executive Producer Milan Popelka Executive Producer Dick Pope Cinematographer William Goldenberg Film Editor Alexandre Desplat Original Music Gemma Jackson Production Design Tonja Schurmann Set Decoration Zac Posen Costume Designer Sophie O'Neill Costume Designer Brad Zimmerman Executive Producer