Sanctuary's resident blonde bombshell Emilie Ullerup and Elise Gatien (previously seen in Eureka, Bionic Woman and Doctor Dolittle: Tail to the chief) are appearing in the episode 6 of Smallville season nine titled "Crossfire".
Emilie will play Cat Grant (played by Babylon 5's Tracy Scoggins in Lois & Clark: The New Adventures of Superman back in the 90's) and Elise will be playing Mia Dearden aka Speedy, whose character appearance was previously reported a few weeks ago.
Images are below of the two hotties in the episode.
