Clarke began her career when she was discovered by French designer Jean-Paul Gaultier, while on a trip in London. She then became a model, using her tall height, her athletic figure and her bald head to be noticed all over Europe. Her look was even imitated by a number of young black models, especially in the United Kingdom. During the mid-1990s, many bald black women modeled.
After that, she retired from modeling to try her luck in cinema. She began working as an actress on The Fifth Element, where she played the assistant of Diva Plavalaguna.
She then was selected as one of the Jedi Masters for The Phantom Menace, using as a stage name only Gin. Master Adi Gallia used unique headwear, so that Clarke's shaved head was not visible. She became one of the fan favorites, and one of the first nonspeaking Jedi Masters to get her own action figure (at a point where action figures included a chip to speak lines from the movies).
For Attack of the Clones, Clarke was not cast again. Lily Nyamwasa, having a certain resemblance to Clarke, was selected to play Adi Gallia. Although she wore the same costume, it was finally decided that she looked too different from Gallia, so Nyamwasa became a new character named Stass Allie, a relative to Adi Gallia.