From d20 NPC Wiki

• D20 NPCs by Challenge Rating
• D&D Named Demon Project
• D20 NPCs by Primary Character Class
• D20 Modern NPCs by Challenge Rating
• D20 NPCs by Creature Type
• Brobdingnagian Teratoid Tarrasque
• Mutants & Masterminds NPCs by Power Level
• Death, CR 373
• A'tuin the Star Turtle
• Sample Dragons
• Ouroboros, Great-Great-Great Wyrm Cometary Dragon
• Published NPC Project
• Bahamut, Great-Great-Great Wyrm Platinum Dragon
• Nature Buddies: Advanced Animal Companions
• Yggdrasil, Elder Timber Dragon
• Tiamat, Great-Great-Great Wyrm Polychromatic Dragon
• The Angel of Death
• Star Wars d20 NPCs by Challenge Code
• Maladric, Human Akalich Sorcerer 68
• D&D Named Devil Project
• D20 Product Listing
• Star Wars Saga Edition NPCs by Challenge Level
• D&D Named Celestial Project
• BESM d20 NPCs by Challenge Rating
• True20 NPCs by Level