Sibongile Mlambo is a Zimbabwean actress based in the United States. She is known for starring in Netflix’s Lost in Space, the Starz historical adventure television series Black Sails and in films Honey 3 and The Last Face. She is also best known for her role as Tamora Monroe on the MTV television series Teen Wolf, as Donna on the Freeform television series Siren, and voicing Melusi in the Ubisoft multiplayer game Tom Clancy's Rainbow Six Siege.

Early life
Mlambo was born in Zimbabwe, and her father is a doctor. Mlambo has an older sister who is also an actress. Mlambo left Zimbabwe in 2005 to pursue her education in the United States and has lived in Texas, New York and briefly in Spain. In 2011, Mlambo was living in South Africa, working in Johannesburg and Cape Town. Mlambo later moved back to the United States, settling in Los Angeles.

Mlambo studied French and Spanish at Southern Methodist University and has a dance background.