Lil Sis is a fictional character portrayed by Teresa Lopez in the TV series Psych.
They appear in 1 episodes out of a total of 120 aired
Episodes1
Let's Doo-Wop It Again
episode S6.E13 march 2012Gus and his former a cappella group perform at a charity event. Shawn has an appendicitis attack and goes to the hospital. When the host of the charity event is shot, Shawn has to work the case from the hospital. The a cappella group helps.