SRD & OGL creatures — full stat blocks. Each entry links its source.
| Name | Type | Size | CR | Source |
|---|---|---|---|---|
| Terror Bird | Beast | Large | 2 | Creature Codex |
| The Barbed | Humanoid | Small | 1 | Creature Codex |
| The Flesh | Aberration | Medium | 4 | Tome of Beasts 3 |
| The Flicker Hound | monstrosity | Large | 4 | FTTHelper Original Content |
| The Orb-Tyrant | aberration | Medium | 6 | FTTHelper Original Content |
| The Sunken Ones | humanoid | Medium | 2 | FTTHelper Original Content |
| The Thought-Drinker | aberration | Medium | 7 | FTTHelper Original Content |
| The Watcher in the Void | aberration | Large | 13 | FTTHelper Original Content |
| Thin Giant | Giant | Huge | 9 | Tome of Beasts 2 |
| Thorned Sulfurlord | Fiend | Huge | 11 | Creature Codex |
| Three-Headed Cobra | Monstrosity | Large | 5 | Creature Codex |
| Thripper | Humanoid | Medium | 6 | Tome of Beasts 3 |
| Thrummren | Celestial | Gargantuan | 12 | Tome of Beasts 2 |
| Thuellai | Elemental | Huge | 12 | Tome of Beasts 2023 |
| Thuellai | Elemental | Huge | 10 | Tome of Beasts |
| Thug | Humanoid | medium | 1/2 | Black Flag SRD |
| Thug | Humanoid | Medium | 1/2 | 5e Core Rules |
| Thug | Humanoid | Medium | 1 | Level Up Advanced 5e Monstrous Menagerie |
| Thunderbird | Monstrosity | Large | 3 | Level Up Advanced 5e Monstrous Menagerie |
| Thursir | Giant | Large | 3 | Tome of Beasts 2023 |
| Thursir Giant | Giant | Large | 3 | Tome of Beasts |
| Tidehunter | Monstrosity | Huge | 6 | Tome of Beasts 2 |
| Tigebra | Monstrosity | Large | 13 | Tome of Beasts 3 |
| Timingila | Monstrosity | Gargantuan | 15 | Tome of Beasts 2 |
| Titanic Dragon Turtle | Dragon | Titanic | 24 | Level Up Advanced 5e Monstrous Menagerie |
| Titanic Kraken | Monstrosity | Titanic | 25 | Level Up Advanced 5e Monstrous Menagerie |
| Torch Mimic | Monstrosity | Tiny | 1/2 | Tome of Beasts 3 |
| Tormented Qiqirn | Fiend | Large | 10 | Tome of Beasts 2 |
| Tosculi Drone | Humanoid | Small | 1/2 | Tome of Beasts 2023 |
| Tosculi Drone | Monstrosity | Small | 1/2 | Tome of Beasts |
| Tosculi Elite Bow Raider | Humanoid | Medium | 5 | Tome of Beasts |
| Tosculi Elite Bow Raider | Humanoid | Medium | 5 | Tome of Beasts 2023 |
| Tosculi Hive Queen | Monstrosity | Large | 12 | Tome of Beasts 2023 |
| Tosculi Hive-Queen | Monstrosity | Large | 12 | Tome of Beasts |
| Construct |
| Large |
| 8 |
| Tome of Beasts 2 |
| construct |
| Huge |
| 16 |
| FTTHelper Original Content |
| construct |
| Medium |
| 10 |
| FTTHelper Original Content |
| Construct |
| Large |
| 9 |
| Tome of Beasts 2 |
| Construct |
| Huge |
| 3 |
| Creature Codex |
| Construct |
| Huge |
| 14 |
| Creature Codex |
| Beast |
| Large |
| 1 |
| Level Up Advanced 5e Monstrous Menagerie |
| Beast |
| Large |
| 1 |
| 5e Core Rules |
| Beast |
| large |
| 1 |
| Black Flag SRD |
| Beast |
| large |
| 2 |
| Black Flag SRD |
| Beast |
| Gargantuan |
| 12 |
| Tome of Beasts 2023 |
| Beast |
| Gargantuan |
| 12 |
| Tome of Beasts |
| Construct |
| Huge |
| 8 |
| Tome of Beasts |
| Construct |
| Huge |
| 8 |
| Tome of Beasts 2023 |