1 of 18 Patrick McElhenney/Fox
Special Agent Seeley Booth (David Boreanaz), Bones
Anyone who wears a "Cocky" belt needs to be recognized. Confident and worldly, Booth can charm the pants off anyone, but it's his heartfelt moments with Brennan and his kids that have our heart all aflutter.
2 of 18 Jack Rowand/The CW
Oliver Queen (Stephen Amell), Arrow
Have you seen this guy's abs? Even though billionaire playboy Oliver is in wicked good shape, we're most drawn to his brooding heroics as Starling City's hooded, bow-and-arrow-toting vigilante superhero. Hard to resist a bad boy who's actually a good guy.
3 of 18 Bob D'Amico/ABC/Getty
Detective Kate Beckett (Stana Katic), Castle
With her runway-ready looks, it's no mystery why Beckett is Castle's muse. But she's so much more than a pretty face. Beckett's vulnerability about her mother's murder complements her no-nonsense attitude. And now that she's got her man, we love seeing her let her hair down even more!
4 of 18 Fred Norris/CBS
Roy Rayder (Cam Gigandet), Reckless
We have zero objections calling Charleston's new city attorney swoon-worthy, and it's not just because of his leading man looks. In addition to this Southern gentleman's impeccable manners, he also is one of the few crime fighters with their priorities in check: He always puts his two adorable young daughters before his work.
5 of 18 Jeff Daly/USA Network
Paul Briggs (Daniel Sunjata), Graceland
At first glance, it's undeniable that FBI Agent (and bureau legend) Paul Briggs is a classically handsome man. But those who dare dig below the surface will find Briggs even more enticing thanks to his easy-going charm and dark and mysterious past. A bad boy who plays for the good guys? Count us in.
6 of 18 Trae Patton/TNT
Terry English (Taye Diggs), Murder in the First
Det. English makes our hearts flutter and ache on TNT's Murder in the First. The man can certainly rock a suit and tie like nobody's business, and the fact that he's a grieving widow allows us to also see his sensitive side. It's no wonder Terry has women (including his grieving sister-in-law and a real estate agent) falling all over him, but his polite but firm rejection of their advances out of respect for his dead wife only makes us swoon even more.
7 of 18 Colleen Hayes/Warner Bros.
Patrick Jane (Simon Baker), The Mentalist
Between his killer smile (no pun intended) and his gorgeous golden locks, Patrick Jane can study us up and down any day of the week. Surprisingly, we're loving seeing more devil in this handsome devil.
8 of 18 Ron P. Jaffe/CBS
Special Agent Tony DiNozzo (Michael Weatherly), NCIS
Yeah, DiNozzo's easy on the eyes, but his best attribute is his self-deprecating sense of humor and lightheartedness. His incessant movie references not only break the tension, they sometimes crack the case. His Sean Connery impression is — dare we say? — more entertaining than the real thing.
9 of 18 Ben Mark Holzberg/The CW
Nikita (Maggie Q), Nikita
Nothing's sexier than going rogue. That cut-down-to-there bathing suit — not to mention the tattoo of a phoenix Q has running up her thigh — both scream "hot vigilante." Nikita's single-minded quest to bring down Division from the inside is just as captivating.
10 of 18 Prashant Gupta/FX
Deputy U.S. Marshal Raylan Givens (Timothy Olyphant), Justified
We love a confident man, and they don't come more confident than the laid-back, quick-triggered lawman Raylan Givens. He's a man of few words, but when he does open his mouth, you get a witty one-liner that, with his Southern drawl, is sure to make the ladies melt. Or maybe it's just the hat…
11 of 18 Andrew Eccles/USA Network
Annie Walker (Piper Perabo), Covert Affairs
Even Auggie thinks Annie is hot, and he's blind! But it takes real skills to play the spy game without her closest loved ones finding out. Plus: She can say "that's hot" in 10 languages.
12 of 18 Diyah Pera/The Cw
Sam and Dean Winchester (Jared Padalecki and Jensen Ackles), Supernatural
Sure, they aren't exactly cops, and the crimes they solve aren't the most realistic on TV, but whenever the hunky brothers are called to fight supernatural evil, we can't stop watching. And honestly, what's sexier than a guy who'll literally go to hell and back to protect those he cares about?
13 of 18 Norman Shapiro/CBS
Kono Kalakaua (Grace Park), Hawaii Five-0
Kono's got enough skills to hang with the boys, but they definitely cannot hang (ten) with her perfect surfer bod. Just be sure to never crowd her wave or you'll be on the receiving end of a deadly right hook.
14 of 18 Cliff Lipson/CBS
Special Agent Derek Morgan (Shemar Moore), Criminal Minds
Derek Morgan is the only man on TV whose T-shirts are tighter than Simon Cowell's. Fortunately, he has the ripped bod and guns to fill them out in all the right places. Note to writers: We also wouldn't be opposed to seeing Morgan in his football uniform from his Northwestern playing days.
15 of 18 Art Streiber/NBC
Detective Olivia Benson (Mariska Hargitay), Law & Order: SVU
Benson blends empathy and toughness so perfectly that it's never difficult to buy her collaring baddies one minute and being heartbroken over losing guardianship of a suspect's son the next. Now that she's had some sparks in her love life, we hope to see even more flames next.
16 of 18 Norman Shapiro/CBS
Lt. Commander Steve McGarrett (Alex O'Loughlin), Hawaii Five-0
While we were bummed that O'Loughlin's previous TV efforts (Moonlight and Three Rivers) didn't work out, we think he's finally found his true calling. After all, O'Loughlin's shirtlesness is made more plausible on a show set in Hawaii.
17 of 18 TNT
Detective Jane Rizzoli (Angie Harmon), Rizzoli & Isles
Jane Rizzoli may not have Maura Isle's schmancy designer wardrobe, but it's not like she needs it. The ultimate crime-fighting tomboy is all about taking names — namely Charles Hoyt's — in whatever fits. However, can you really dress down Harmon's smokin'-hot looks? Or buy that Jane was "Roly-Poly Rizzoli" back in the day?
18 of 18 Robert Voets/CBS
Special Agent Kensi Blye (Daniela Ruah), NCIS: Los Angeles
The Portuguese beauty packs some serious heat (figuratively and literally), but she's really a geek at heart, collecting jelly bracelets and comic books, just like Deeks. A match made in heaven?