In GnollHack, you can choose one of the following 13 character classes:
- Archaeologist — Lightly equipped explorer
- Barbarian — Strong melee warrior with poison resistance
- Caveman — Strong warrior that starts with a club and a sling
- Healer — Rich physician, adept at healing spells
- Knight — Heavily armored melee warrior, adept at riding
- Monk — Martial artist, adept at several spells
- Priest — Armored clerical spell caster, who automatically identifies the beautitude of items
- Ranger — Potent archer, adept at ranged combat
- Rogue — Versatile warrior, adept at melee and ranged combat and at disarming traps
- Samurai — Strong Japanese warrior adept at both melee and ranged combat
- Tourist — Versatile traveller that can specialize in almost every combat and magic skill
- Valkyrie — Strong female melee warrior, who starts with cold resistance and stealth
- Wizard — Powerful spell caster who can specialize in many arcane spell schools