Sergius Saranoff is a fictional character from the play "The Royal Family," written by George S. Kaufman and Edna Ferber. He is portrayed as a charming and somewhat flamboyant actor, embodying the traits of a classic stage performer. Saranoff's character reflects the glamorous yet tumultuous world of theater during the early 20th century. In the play, Saranoff is part of the wealthy and eccentric Cavalcade family, which is loosely based on the famous Barrymore family of actors. His interactions with other characters highlight the complexities of fame, family dynamics, and the pursuit of artistic success in the competitive landscape of show business.