Ruby Wylder Rivera Modine (born July 31, 1990) is an American actress, singer, and dancer. She is best known for playing Sierra in Shameless, and co-starring in the 2017 slasher film Happy Death Day as Lori.
Modine is the daughter of Caridad Rivera, a makeup and wardrobe stylist, and actor Matthew Modine. Her mother is Puerto Rican, and Ruby also has African American and European American ancestry. She has a brother named Boman who is an assistant director for films.
Modine was cast as Sierra, one of the new waitresses at Patsy Pies managed by Fiona, in the seventh season of Shameless. On November 8, 2016, she was cast to co-star in the film Happy Death Day starring Jessica Rothe and Israel Broussard.