Accents and Dialects:
Australian*, British Isles (cockney, proper British, Irish and Scottish), Southern US (several), New Yorker (Several), Bostonian, Worcester, Mid-western, Russian, French, Armenian,German, Japanese, Chinese, Canadian, Arabic, Indian, etc..
IMPERSONATIONS/ VOICE MATCH (Spot-On)
Charlie Sheen, David Attenborough, Paul Harvey, Morgan Freeman, Patrick Warburton, Patrick Stewart, Hugh Jackman, The Simpsons - (Mr. Burns, Homer, Moe, Apu, Chief Wiggam, Ralph, Professor Frink, Mr smithers, Krusty, etc.) Family Guy (all the main characters). Essentially: if you provide a celebrity or character name (i.e. Christopher Walken, Bugs Bunny, Bruce Jenner, etc.) I can tell you instantly whether or not I will be able to do a spot-on impersonation; and within two hours, I will!
Accented characters:
Southern dandy, Boston fisherman, Loud-obnoxious New Yorker, British fop, Nutty Nazi, A big purple blob that lives under your bed, An alien making a phone call to a demon, A dynamite superhero tandem, a surfing monkey...
...the list goes on and on and on.