| Name |
Source |
Type
|
| Y5 |
Adventure Time: Distant Lands |
Rabbit-like humanoid
|
| Yacatisma |
Church of the SubGenius |
|
| Yag-Kosha |
Robert E. Howard's The Tower of the Elephant |
Humanoid elephant
|
| Yaetuans |
Christan Clines's The Yaetuan Sagas |
Six limbed intelligent species
|
| Yanme'e |
Halo |
|
| Yautja |
Predator |
Humanoid. Also known as Predators. They are a warrior race that hunts down other sentient races for sport, but follow a code of honor and deeply respect those who manage to defeat one of their own in combat.
|
| Yariru |
Vampire Idol |
Vampire-humanoids
|
| Yazirian |
Star Frontiers |
Ape-like humanoid glider
|
| Yeerks |
K. A. Applegate's Animorphs |
Slug-like parasites. They need a host to see, walk, and communicate, and are the main antagonists of the Animorphs series, intent on enslaving other species.
|
| Yehat |
Star Control |
Pterodactyl-like
|
| Yeti |
Doctor Who |
|
| Yilane |
West of Eden series by Harry Harrison |
|
| Yip-Yips |
Sesame Street |
|
| Yliis |
2300 AD |
|
| Yolkians |
Jimmy Neutron |
Gooey Slug-like aliens with egg shaped suits.
|
| Yomingans |
Schlock Mercenary |
|
| Yor |
Galactic Civilizations |
|
| Yorn |
Star Control 3 |
|
| Ythrian |
Poul Anderson's Technic History |
Eagle-like aliens
|
| Yridian |
Star Trek |
|
| Yugopotamians |
The Fairly OddParents |
Squid-like aliens with dome-covered brains.
|
| Yuuzhan Vong |
Star Wars |
Humanoid
|