Captain Hook puts on a impressive show, but did you know that Colin O'Donoghue is actually Irish? It might just be a small hop between islands, but boy does that man's accent sound different off camera! Major thumbs up to Colin for pulling off such a complicated switcharoo.

You might recall Andrew Lincoln playing a small but memorable part in Love Actually, everyone's favorite British Christmas film. Well, that's actually his native tongue, and Rick's southern drawl is a complete fabrication on Lincoln's part. A great one, if we do say so ourselves!

This one is easier to catch, as Phoebe Tonkin's Australian accent does tend to slip into her dialogue now and again. Nevertheless, Hayley's American accent is convincing enough to turn a few heads when people find out that her actress is actually from down under.

These two get a joint slide because they are BOTH Aussies masquerading as Americans! That's right folks, you're favorite dynamic duo of the nuclear apocalypse are actually constrantly trying to suppress a "g'day, mate" behind the scenes. Mind blown.

He might not sport the best British accent you've ever heard, but Peter Dinklage doesn't mess around when perfecting Tyrion's slight lilt. It's quite a jolt to hear him bust out in his everyday Jersey charm when he's not battling dragons and kings.

Is anyone else shocked to find out that this adorable little zombie is actually a kiwi? Her American accent may sound 100% genuine, but Rose McIver is native to New Zealand! And trust us, she only gets cuter when you hear how she sounds in real life.

You might not be aware, but one of your favorite werewolves is actually a Brit! Isaac puts on a pretty awesome American accent, but his actor, Daniel Sharman, hails from Hackney, London.

As it turns out, Enzo's charmingly ambiguous British accent is a complete fake, since Michael Malarkey is from Ohio of all places. He did study at the London Academy of Music and Dramatic Art, so maybe that's where he picked it up?

Vampire Bill should actually be called Vampire Brit, since his actor, Stephen Moyer, is from Essex, England. Believe us, his English accent is just as delicious as his fake southern one.

This one blew us away, since there is absolutely no hint that the actor behind the dearly departed Daniel Grayson is actually native to Berkshire, England. Daniel was just so All-American!

Another pair you might be surprised by is this songwriting duo from Nashville. These two rock southern accents on the hit country music series, but Claire Bowen is another Aussie, and Sam Palladio is actually quite British. Claire's southern drawl has gotten a few complaints, but Sam's Texas twang is right on the money most days!

Even if he sounds like your typical Californian, Jax might seem a little more high brow if you knew that on his days off, he has a slight British lilt. Yep, Charlie Hunnam doesn't exactly speak like the Queen of England, but he definitely extends those A's of his.

This is kind of a catchall situation, since Tatiana Maslany seems to acquire six new accents every year. Sarah's a bit cockney, Rachel is upper-crust British, Helena rocks the Ukranian, and there was that German back in Season 1. Each clone gives the Canadian Tatiana a new dialect to play around with.

Everyone swoons over Chuck Bass and his bad boy ways, but can you imagine how much more swoonage their would be if Ed Westwick had played him in his original English accent? We're feeling faint just thinking about it.

Owen might be an American hero on screen, but you'd probably be surprised to learn that his actor, Kevin McKidd, speaks with a strong Scottish brogue. We're talking Outlander levels here, which makes his seemless transistion into everyday Seattleite even more impressive.

Like quite a few of her Original family members, Claire Holt is an Aussie masquerading as a Brit, and pulling it off fabulously. You might also remember that Claire put on a very convincing American accent when she did a turn on Pretty Little Liars as Samara!

You Hogwarts fans might have caught on to this one, since Alfred Enoch's big break was as Dean Thomas in the famous Harry Potter franchise. You normally can't tell that Alfred is actually a London native because his American Wes is just that good.

If you're surprised by this one, then we're thinking you may never have heard a real British person before. American actress, Katrina Law does her best to put an air of refined mystery into Nyssa's ambiguous speech patterns, but for the most part it's entirely unconvincing.

Showtime's racey historical drama sported quite a few English actors, but one cast member who was faking it was Francois Arnaud. Francois is actually Canadian! No need to panic though, if you're still looking to get some sexy accents out of him - as a Quebec native, he speaks fluent French.

Barbara might not have a lot of redeeming qualities, but you've got to admit you're a little floored by the revelation that she's not, in fact, American. Nope, Erin Richards is actually Welsh, making her sound even classier in real life than she does on screen.

Despite being set in France, with many supposedly Scottish characters, everyone on Reign seems to be sporting an English accent. Go figure. Most are genuine, but one that is not is the roguishly handsome king's bastard, Bash. Torrance Combs is another Canadian, but we imagine being surrounded by all the English accents of his castmates probably keeps him in line.