The core book provides eight classes to choose from: Warrior, Cleric, Rogue, Wizard, Barbarian, Elf, Dwarf, and Halfling. Beyond that, there are many classes added in supplements:
| Class | Location | Notes |
|---|---|---|
| Barbarian | 4AD, p. 12 | |
| Beastmaster | CCC, pp. 14–15 | |
| Cleric | 4AD, p. 9 | |
| Cleric of Elidra | CCC, p. 16 | |
| Cleric of Korimnos | CCC, p. 17 | |
| Conservationist | TCOTFD, pp. 13–14 | |
| Druid | W&A, pp. 5–6 | |
| Dwarf | 4AD, p. 14 | |
| Elf | 4AD, p. 13 | |
| Gnome | W&A, pp. 11–14 | |
| Green Troll | W&A, pp. 17–21 | |
| Halfling | 4AD, p. 15 | |
| Martial Mystic | W&A, pp. 7–10 | |
| Rogue | 4AD, p. 10 | |
| Satyr | TCOTFD, pp. 10–12 | Mostly useful in TCOTFD. |
| Wandering Alchemis | TCOTFD, pp. 7–9 | |
| Warrior | 4AD, p. 8 | |
| Wizard | 4AD, p. 11 | |
| Wood Elf | W&A, pp. 15–16 |