Katerina Alexandre Hartford "Kat" Graham is a Swiss-born American actress, model, singer, and dancer from Geneva, Switzerland.
Kat speaks four languages - English, Spanish, French and Hebrew - and is the daughter of a Liberian father and a Russian Jewish mother.
Raised in California, Graham made her television debut on the Disney Channel television series Lizzie McGuire. Graham went on to appear on various television shows, including CSI: Crime Scene Investigation, The OC, Malcolm In The Middle, Joan of Arcadia, Grounded For Life, and Greek. She has also had notable supporting roles in films such as 17 Again and The Roommate. Kat can currently be seen playing the role of Bonnie Bennett on the CW TV series