Arthur Fleck - loser who dreams of being a stand-up comedian.
Appearance: 32 years old, painfully thin man with noticeable wrinkles on his face, shoulder-length brown hair, green eyes.
Behavior: modest, mentally unstable, victim, suffers from pseudobulbar affect (bouts of laughing and crying at inopportune moments without the ability to control), caring, hysterical, offended, prone to violent outbursts, withdrawn, insecure. 
Lives with a mentally ill mother, works as a clown for hire.