Katerina Alexandre Hartford "Kat" Graham (born September 5, 1989) is a Swiss-born American actress, model, singer and dancer. Her film roles include The Parent Trap (1998), 17 Again (2009), The Roommate (2011), Honey 2 (2011), Addicted (2014) and All Eyez on Me (2017). She is known for her role as Bonnie Bennett on The CW supernatural drama series The Vampire Diaries.