Marita Covarrubias
She first showed up in "herrenvolk" where mulder was going to see the SRSG and his secritary. She showed him a picture of child clones. In which each of the girls resembled mulders sister, samantha that was abducted by aliens at the age of 8.
But i think that mulder should watch out for marita (aka unblonde) she seems to be in bed with the cigarette-smoking man. figureativaly of corse.
