Today is Australia Day, which means millions of Aussies around the world are celebrating the discovery of their homeland in 1788. At TV Squad, we're celebrating by watching clips of 'Summer Heights High' and thinking about our favorite Australian TV actors.

Believe it or not, many of our biggest small screen stars aren't actually Americans -- they just play ones on TV. Take, for example, Portia De Rossi, hilarious actress and successful memoir author (not to mention wife of Ellen DeGeneres). Betcha forgot she comes from the land Down Under. Same with Ryan Kwanten, shirtless 'True Blood' star and all-around charming guy. Emmy- and Golden Globe–winning 'United States of Tara' star Toni Collette? Yep, a true-blue Sydneysider.