Mike Moody

Fans of the Showtime series ‘Dexter’ are well-acquainted with today’s killer crush – Jennifer Carpenter.

Jewel Staite first nabbed our attention playing the sweet, sexy and loveable space mechanic Kaylee on ‘Firefly,’ ‘Avengers’ director Joss Whedon’s celebrated but short-lived sci-fi show. Staite reprises the role for the show’s big screen spinoff, ‘Serenity,’ showing fans a tougher, and somehow hotter, side of Kaylee.

Zilda Williams is a 27-year-old Australian model and actress who divides her time between Sydney, Australia and Los Angeles.

Actress Shay Mitchell is one of the core hot chicks that make up the primary cast of the hit ABC Family show ‘Pretty Little Liars,’ which ended its second season earlier this week. Mitchell plays Emily fields on the show, a sexy and superstitious lesbian hottie of Irish and Filipino descent.

Shame on us for not adding ‘MythBusters’ geek goddess Kari Byron to the crush list sooner. Kari is perfect crush material — she’s super hot, funny, clever, cool, and she blows stuff up for a living.

Meet Tristyn Suicide, Today’s SuicideGirl. Tristyn is a 23-year-old geek girl from Torrance, California who loves ‘Doctor Who,’ horror movies and babes with beards … or maybe it’s babes and beards.

Nadia Lanfranconi, an aspiring singer/model/actress, is rumored to be dating our favorite crazy ‘Lethal Weapon’ star not named Danny Glover (or Joe Pesci or Chris Rock), Mel Gibson.

British folk and soul singer Lianne La Havas is receiving a ton of buzz lately, and it’s all well deserved. She has a singular sound and an unforgettable look that’s inspired us to name her our Crush of the Day.

Michelle Rodriguez has always been a stunner, but we’re crushing on the tough, sexy actress today thanks to a new batch of photos that show off her more elegant and sensual side.

We sang her praises when we listed the Hot Girls of ‘Buffy the Vampire Slayer,’ but we’re still crushing on Joss Whedon alum Charisma Carpenter.

Meet the actress hot enough to play a vampire goddess on ‘True Blood,’ Jessica Clark.

Katee Sackhoff earned her place in the Geek Goddess Hall of Fame with her stunning and sexy portrayal of the badass space pilot Starbuck on ‘Battlestar Galactica.’ But we’d be crushing on the blonde actress even if she didn’t star in one our favorite sci-fi shows.