Shane West, Helena Mattsson Shane West, Helena Mattsson

Cassandra is blonde, beautiful... and on Nikita fans' most-hated list.

In Friday's episode, "Looking Glass" (8/7c, The CW), Michael (Shane West) looks up Cassandra (Helena Mattsson), a woman he had "romanced" as part of a mission for Division back in the day. Wait, what does he want with her now that he's with Nikita (Maggie Q)?

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At this point, fans are aware that the Cassandra story arc will lead to an eventual rift between Michael and Nikita this season. West sat down with Wednesday in Los Angeles to allay their fears... temporarily at least. "In the promos, it's hard to tell if it's a flashback or if it's not," said West. "Everything that seems like it's freaking out the fans with the Michael and Nikita stuff in this episode, it's a flashback. So people can be relaxed with that for now. They might not like it, but it's in the past."

But fans will be wise to heed that sense of foreboding. Down the line there will be friction, disagreements and some form of "Mikita" separation, which is why West isn't currently needed on the Toronto-based set of Nikita and can chat about the show in sunny LA.

Check out what else he has to say about Cassandra's background, how Michael couldn't disengage his feelings during the mission and what West would like to see Michael wear next now that he's rid himself of those Division suits:

Nikita airs Fridays at 8/7c on The CW.

Do you think Michael has residual feelings for Cassandra? Should Nikita be worried or rise above it? Can those two crazy kids work it out?