Tessa Lynne Thompson (born October 3, 1983) is an American actress and musician. She is probably best known for portraying as Jackie Cook on the film noir television series Veronica Mars. She also appeared in other shows such as Cold Case, Grey's Anatomy, Private Practice, Heroes, Rizzoli & Isles and Copper. She will have a main role in the upcoming HBO series Westworld. She played Bianca in the Rocky spin-off Creed.