Marianne Rendón is an American actress known for her role as Susan Atkins in the biopic film Charlie Says about the life of Charles Manson and as Julia "Jules" Langmore on the Bravo dark comedy television series Imposters.

Early life and education
Rendón was born to Robert (Bob) Rendón, a sound technician and Valerie Lemon-Rendón, a singer. She was raised in New Rochelle, NY. Marianne was educated at Bard College in upstate New York. While at Bard, she and friend Lola Kirke formed band "Sheroes", an all-female country feminist band. She graduated from the Juilliard School in 2016. She was married to actor and teacher Ker Wells until his death from pancreatic cancer on August 30, 2019.