| Main Characters: |
Swamp Thing • Alec Holland • Abigail Arcane • Tefé Holland |
| Supporting Cast: |
Chester Williams • Liz Tremayne • Matthew Cable • John Constantine • Parliament of Trees • Gene LaBostrie • Alex Olsen • Linda Holland |
| Villains: |
Anton Arcane • General Sunderland • Sunderland Corporation • Defense Department Intelligence • Great Darkness • Matango • William Arcane • The Rithm |
| Neutral Parties: |
Parliament of Decay • Parliament of Limbs • Parliament of Waves • Parliament of Vapors • Parliament of Flames • Parliament of Stones • Parliament of Worlds |
| Locations: |
Louisiana • Terrebonne Parish • Houma • Spirit World |
| Miscellaneous: |
Bio-Restorative Formula • The Black • The Green • The Red • The Clear • The White • The Grey • The Melt • The Metal • The Divided |
| Comics: |
Roots of the Swamp Thing (Volume 1) • Swamp Thing (Volume 1) • Swamp Thing (Volume 2) • Swamp Thing (Volume 3) • Swamp Thing (Volume 4) • Swamp Thing: Roots • Swamp Thing (Volume 5) • Swamp Thing (Volume 6) |
| Other Media: |
Swamp Thing (1982) • Return of the Swamp Thing (1989) • Swamp Thing (1990–1993) (live action) • Swamp Thing (1991) (animated) • Swamp Thing (NES) (1992) • Swamp Thing (Game Boy) (1992)• Swamp Thing (2019) (live action) |
