Irish cutie Allen Leech stole Sybil's heart and ours as Downton Abbey's fiery chauffeur Tom Branson.
We fell in love with Chris O'Dowd after his good-cop role in Bridesmaids.
We know Irish hottie Jamie Dornan for his role as Sheriff Graham in Once Upon a Time, but besides acting, he's also a musician and a model, having founded an Irish folk music label and modeled for Calvin Klein. He even dated Keira Knightley for a couple of years! Let the swooning continue with his lead role as Christian Grey in the film adaptation of Fifty Shades of Grey.
Colin Morgan came onto the scene as the titular character in BBC series Merlin, but he's grown into quite the cutie!
He may play Sherlock Holmes's evil archenemy, Jim Moriarty, in the BBC series Sherlock, but we can't help but be mesmerized by those piercing eyes.
London-born Daniel Day-Lewis has had both British and Irish citizenship since 1993 thanks to his Irish father. This is one of those guys who just gets hotter with age.
Cillian Murphy has got those piercing blue eyes that make us swoon.
At 27, supercute Irish actor Robert Sheehan already has three IFTA nominations and one BAFTA nomination. He also shared a BAFTA award with the cast of Misfits.
If you're looking for a sexy Irish ginger, Domhnall Gleeson's your man. Domhnall played Bill Weasley in Harry Potter, and his dad in real life played Mad-Eye Moody!
Talented hottie Kenneth Branagh really caught our eye in My Week With Marilyn.
The Being Human TV star also had a role in the Hobbit films. Love his long locks and mischievous smile!
Irish-born Liam Neeson has been nominated for an Oscar, a BAFTA, and three Golden Globes. But the real reason we adore him? Love Actually.
The handsome Robin Hood actor Jonas Armstrong has an adorable smile.