Elsa Mars

 Elsa Mars  is the manager of a quite unsuccessful Freak Show. She is a main character in American Horror Story: Freak Show.

She is portrayed by Jessica Lange, who also portrayed Sister Jude and Fiona Goode.

Elsa is a tortured woman with a dangerous desire for fame. She secretly has prosthetic legs, which reveals she has more in common with her "freaks" than meets the eye.

Personality
In terms of personality, Elsa's is certainly one of a large capacity. The German ex-pat is probably best known for her ambition and cleverness. However, often times she works in her own self interest, meaning her cleverness can begin to tread into waters of manipulation. Yet, despite these flaws, Elsa's overall personality is one of class and kindness. She seems to truly care for her freaks and their well-being. As long as they stay out of her spotlight, that is.

She crosses the moral event horizon when she throws a knife at Paul, her employee/lover, when he called her out on the disappearance of Bette and Dot Tattler.