Is Kaley Cuoco Dating 'Arrow' Star Paul Blackthorne?

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Kaley Cuoco could have a new man in her life after splitting with her husband of almost two years, Ryan Sweeting, in September.

The 30-year-old Big Bang Theory actress is dating 46-year-old Arrow star Paul Blackthorne, Us Weeklyreports. "It's new, but she's really excited about it," an insider tells the magazine.

Reps for both Cuoco and Blackthorne declined to comment.

WATCH: Kaley Cuoco Sports Short Shorts on Night Out With Her Ex, Johnny Galecki

We do know that Cuoco and Blackthorne are at least good friends, as Cuoco Instagrammed a picture of herself supporting Blackthorne's conservation charity for wild elephants last month.

"Help my friend @paulblackthorne @airshepherd #KeepRhinosHorny," she wrote, proudly sporting his T-shirt.

View this post on Instagram

Help my friend @paulblackthorne @airshepherd #KeepRhinosHorny Buy Tee here in nxt 24 hrs 4 chance to win THIS T SHIRT signed by yours truly! (Link in my bio) Why Keep Rhinos Horny? Rhino poaching has increased massively in recent years. In 2007, 13 Rhinos were poached in South Africa. In 2014, 1200 Rhinos were poached. Presently a Rhino is being killed every 8 hours for its horn. Deaths will soon be overtaking births leading to one thing: EXTINCTION. The ridiculous thing about it, is that Rhino horn is made of the same thing as your FINGERNAILS. As far as I know fingernails don't cure cancer or make you the world's hottest lover, as is believed to be the case about Rhino horn in certain parts of the world (China, Vietnam, Thailand). I'm running this campaign because I want to help raise money for Air Shepherd. They have 'super computers' on the ground in South Africa that can predict the poachers' movements. They then send in drones to confirm that information. Once confirmed, they send in the Rangers and the poachers are arrested. Where the drones fly, the poaching STOPS. The more drones we get in the air, the more Rhinos we save. It's simple. 100% of the money raised from the Keep Rhinos Horny T-shirt is going to the Air Shepherd initiative. Thank you for your support. Paul 💗💗💗

A post shared by Kaley Cuoco (@kaleycuoco) on

Blackthorne also re-posted Cuoco's pic on his own Instagram, offering a chance for those buying the T-shirt to win one signed by Cuoco.

So what do we know about Cuoco's possible new man? Blackthorne is a British actor as well as an accomplished photographer, and has had roles on ER, 24, and Lipstick Jungle. He currently plays Detective Quentin Lance on Arrow. A source tells ET he was engaged a couple years ago, to a woman who is not a celebrity. He also dated Daryl Hannah in 2010.

Josephine Santos,

Cuoco and Blackthorne also share the same agent, and aside from their television background, have a common passion for animals. Blackthorne's Instagram is filled with posts on his conservation efforts, including this pic of him sporting his own face on a T-shirt, reading, "Poach eggs, not elephants."

Last month, Cuoco hosted the All-Star Dog Rescue Celebration, and has made her love for animals -- specifically her six horses -- well-known.

"I ride horses five days a week whenever I can," she told Shape in September. "I have six horses, and they have been the biggest blessing in my life. Horseback riding is why I'm so centered, especially in this business. I wouldn't have my career without it."

WATCH: Kaley Cuoco Celebrates Her 30th Birthday With Her Furry Friends

Whether Cuoco's in a new relationship or not, it's safe to say she's looking better than ever. Watch the video below to see her flaunting her killer abs in nothing but a Calvin Klein bra top while promoting her upcoming appearance on Lip Sync Battle!

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