Round 3 of our Ultimate Female Law-Enforcement Crushes Bracket Tournament begins with a matchup that’s sure to induce headaches in fans of the sci-fi genre.

‘Law-Enforcement Crushes’ Round 2 Ends With Criminal Minds-Off, Intra-Nikita Showdown!

Indeed, we’ve got a tough battle for supremacy betweem The X Files‘ Dana Scully and Fringe‘s Olivia Dunham.

And, of course, in the single-elimination world of the TVLine Thunderdome, two crime-fighters will enter, but only one will leave!

Every afternoon over the next few weeks, in fact, we’ll launch another set of bouts that will test the strength of your character allegiances. So make sure the right choice is made by heading down to our polls to vote for your favorites (Round 3 voting will be open for 72 hours), and hit the comments to justify your picks.

Bones and Isles Geeks Clash, Unforgettable and SVU Stars Collide in ‘Law-Enforcement Crushes’

(Oh, and in case you’re wondering/fretting, we put a cap of two cast members per show, which meant some fan favorites had to warm the bench this time around.)

Also, if you’re interested in the match-ups we’ve got planned for the coming weeks, CLICK HERE TO CHECK OUT THE ENTIRE 64-PLAYER BRACKET (then click again for a zoomed-in view) — and sign up to follow me on Twitter @MichaelSlezakTV.

Now ready, set, vote!