Kerry Washington

Another actress (along with Jessica Alba) who's appeared in both Fantastic Four films...
Bounces between "serious" films like Rayand Last King of Scotland and "popcorn" flicks like Lakeview Terrace and I Think I Love My Wife with ease.

Genre appearances include...
Django Unchained (BroomHilda)
Scandal (Olivia Pope)
Black Panther (Princess Shuri aka Black Panther)
Lakeview Terrace (Lisa Mattson)

Fantastic Four / Fantastic Four: Rise of the Silver Surfer (Alicia Masters)
Mr & Mrs Smith (Jasmine)
Boston Legal (Chelina Hall)
Sin (Kassie)
WonderFalls (Mahandra McGinty)
[unaired pilot. Role assumed in series by Tracie Thoms]

Check out...
Kerry Washington Central (FanSite)

Other actresses to play Alicia Masters...
Fantastic Four: World's Greatest Heroes [2007] Sunita Prasad
Marvel Action Hour: Fantastic Four [1996] Paulina Lomas
The Fantastic Four [1994] Kat Green [live-action film, never officially released]
Fantastic Four: the VideoGame [2005] Cree Summer