The Original Crossy Road Arctic update added 12 new Crossy Road characters. The total character count went up to 172. There are 10 new characters and 2 new secret characters. The characters, which can be obtained by the prize machine are: Puffin, Lost Penguin, Arctic Hare, Arctic Fox, Lemming, Narwhal, Wolverine, Walrus, Polar Bear.
If you want to know, how to unlock the 2 new secret characters, join the discussion at our secret character section:

HOW TO UNLOCK ALL SECRET CHARACTERS IN CROSSY ROAD!