Nickel is a round coin-shaped character with two sides - heads and tails. His body, including his rims, is shiny silver/gray. His face appears on the heads side, and his legs are at the bottom. Nickel is a critical character who is also snarky, churlish and ill-tempered. Nickel's most identifying trope is his trademark sarcasm, which he uses to convert mean thoughts in his head in order not to come off as rude and disrespectful to others.