Ok, I was pretty much a kid when her series was running, but Gillian Anderson was the best thing about The X-Files. You just can't beat a reluctant redhead for fueling my passion.
From the Official Gillian Anderson Website:
Gillian Anderson is an award-winning film, television, and theatre actress whose credits include the roles of Special Agent Dana Scully in FOX Television's long-running and critically-acclaimed drama series, "The X-Files", ill-fated socialite Lily Bart in Terence Davies' masterpiece "The House of Mirth" (2000), and Lady Dedlock in the very successful BBC production of Charles Dickens' "Bleak House".
In 2003, she won the Whatsonstage.com Theatregoers’ Choice Best Actress Award for her West End debut in Michael Weller's two-hander "What the Night Is For". The following year, she starred in Rebecca Gilman's play "The Sweetest Swing in Baseball" which ran at London's Royal Court Theatre from March 25 through May 15, 2004.
I dunno. Offhand, I'd say Gillian might have peaked as an alien fighter.