Romijin joins ‘Ugly Betty’

Actress to play mystery woman

ABC’s “Ugly Betty” is adding some star power, snagging Rebecca Romijn for a key role.

Romijn has inked to be a series regular on the frosh sudser, one of the season’s few new hits. She’ll play the mystery woman who’s been conspiring with Vanessa Williams’ Wilhelmina character to take over the publishing company at the heart of the show.

Character to be played by Romijn has already been seen on the show, but in profile and covered in gauze. A different actress has been supplying the voice of the mystery woman.

Romijn is expected to begin work on Monday. Her first episode should air in time for the February sweeps.

Thesp has some experience playing women with secret identities. She’s appeared in all three “X-Men” films as the mutant Mystique.

Romijn’s roots as a former model should also make her comfortable with the fashion world focus of “Betty.”

On the TV front, she starred in last season’s WB dramedy “Pepper Dennis,” playing the title character. Romijn recently wrapped production on the feature “Lake City,” starring alongside Sissy Spacek.

Romijn is repped by WMA and 3 Arts.