Nicole Richie by Dana Edelson/NBC Photo Nicole Richie by Dana Edelson/NBC Photo

New mom Nicole Richie isn't just all about walks in the park with baby Harlow, or sashaying down red carpets or even shopping. In fact, The Simple Life alumna's making a return to TV as a guest on Chuck this fall.

Richie's guest role will be that of a snarky, mean girl who was cruel to Yvonne Strahovski's character, Sarah Walker, in high school. Walker has to face her former torturer for a mission at her 10-year high school reunion, with Chuck as her date.

Exec producer Josh Schwartz sang the praises of Richie, and made sure we knew she had to try out and everything: "Nicole auditioned for the part and was very funny. This role is a great opportunity for her to show off her comedic skills and...kick some butt." Comedic skills? Kicking butt? Could this be a Nicole we've never really seen before - or expert directing? - Anna Dimond

Use our Online Video Guide to see some of Richie's other appearances.