I can do faux British accents, Proper, Exaggerated, Liverpool and cockney-Dickenson-esque. Some Scottish and Irish. And as some cast-off, some Australian/New Zealand. I can Canadian it with an "aboot" and "eh's."
I have done a couple of German accents for a student film, but it was short sentences.
I can do some italian and some odd mixture of a Spanish/Mexican/Chile accent.
I am fairly good at impersonations of Jimmy Stewart and Casey Kasem. I can do John Wayne, young and old (one-lung). o_O
Sean Connery? Yes.
Clint Eastwood? Yepper. Humphrey Bogart? Sure! How 'bout Katherine Hepburn? Um..OLD Katherine, yes, indeedy! Matthew McConaughey? just a bit, then I lose it... he's just too smooth and laid back!
I am fairly adapt at impersonations and odd UFO-type sounds.