In which film is Mia Dolan a character?

Who played J. Robert Oppenheimer in 'Oppenheimer'? Who played Lewis Strauss in 'Oppenheimer'? Who played Evelyn Wang in 'Everything Everywhere All at Once'? Who played Mia Dolan in 'La La Land'? Who played Sebastian Wilder in 'La La Land'? Who played Terence Fletcher in 'Whiplash'? Who played Chris Washington in 'Get Out'? In which film is Chris Washington a character?