| ancients | |
| andromedan | |
| angelic being | |
| annunaki | |
| ant people | |
| aquatic alien | |
| arcturian | |
| bigfoot | |
| cenobite | |
| centauroid | |
| chupacabra | |
| crystalline being | |
| four-armed being | |
| fungoid | |
| gaseous being | |
| god | |
| grey alien | |
| hive-mind | |
| interdimensional being | |
| jellyfish alien | |
| kaulder | |
| light being | |
| little green men | |
| lizard people | |
| martian | |
| mechanical alien | |
| mothman | |
| mothmen | |
| multi-dimensional being | |
| mutant | |
| nephilim | |
| non-human entity | |
| parasitic entity | |
| phantom | |
| phantom entity | |
| pleiadian | |
| reptilian | |
| reptilian alien | |
| saurian | |
| shape-shifter | |
| ultraterrestrial | |
| vault dweller | |
| wormhole dweller | |
| xenomorph | |
| zeta reticuli |