Heathcliff's a 31 years old man who loves fighting and has a really short temper. He's battle hardened and really informal, talking in slangs and making rabbit jokes and references, as he has rabbit DNA even though he has no physical mutation besides strength, speed and reflexes. He also has a bone to pick with rich people. He loves arguing with Ishmael, and many people shipp them together, since they do it a lot.