Rebecca Romijn is a world famous actress, most famous for her appearences in the X-Men movies.
She has now become even popular since starring in the US smash series Ugly Betty (played by America Ferrara) where she plays Alexis Meade. Rebecca came into the show as Daniel Meade's (played by Eric Mabius who previously starred in The L Word) sister. She dissapeared and was pressumed dead in Ugly Betty series 1, but when Alex returned, he had become Alexis after a sex change, much to Daniel's and his father Bradford Meade's (played by Alan Dale) horror.
More information and Rebecca Romijn pictures can be found on the unofficial fan website here