Femi Taylor
From Wookieepedia, the Star Wars wiki.
Femi Taylor played Jabba the Hutt's Twi'lek slave dancer Oola in Return of the Jedi. She played the same part again fourteen years later, filming new scenes for the Special Edition, having remarkably retained her figure.
Her brother Ben Taylor, a.k.a. Benedict Taylor, played fighter pilot Bravo 2 in The Phantom Menace.
