Backstage with 'chameleon' actor Jefferson Mays on Broadway
28 April 2014 Last updated at 12:16 BST
Jefferson Mays describes his performance as akin to something between a multiple personality disorder and a chameleon.
The American theatre and film actor plays all eight members of the D'Ysquith family in the Broadway musical comedy A Gentleman's Guide to Love and Murder.
Mays has plenty of experience playing many different characters in a single show. In I Am My Own Wife, about a German transgender person, he inhabited 37 different roles.
The BBC went backstage with Mays as a team of dressers changed his complicated stage costumes in as little as four seconds.
Produced by Anna Bressanin
Photos of I Am My Own Wife by Joan Marcus
First Person is a series of video features published every Monday on the BBC News website which tell the stories of unique individuals from all walks of life in their own words.