Lilli voices the Demon Overlord Velvette in the hit Amazon series Hazbin Hotel.
Lilli has played Elphaba in Wicked in 3 different countries and can be heard on the original cast albums of Spring Awakening, The SpongeBob musical and Tootsie.
On screen you can catch Lilli as Doc in Apple TV’s Fraggle Rock: Back to the rock, as well as guest spots on “Dynasty”, “The Good Fight, “NCIS: New Orleans”, “Bull”, “Instinct”, “The Code”, and “Elementary”. She can also be seen in Spielberg’s The Post, and on HBOmax: Spring Awakening: Those You’ve Known. Cooper is a LAGuardia Arts and Vassar alumnae and proud mother of her two sons Bodie & Desi.