Eltarian

Eltarians are a sapient humanoid species native to Eltar. Their most famous member was Zordon, a wizard and Guardian of Eltar who formed Earth's Power Ranger teams and fought against various evil forces over thousands of years, even after being trapped in a time warp, while another Eltarian, Zophram, gained infamy after becoming the villainous Lord Zedd.

Biology
Eltarians are humanoids, and rather Human-like in external appearance, with the most notable external difference being that they have blue skin and are bald, although males can grow facial hair. Additionally, they have pupils that are either light blue or red. Eltarians are able to live for thousands of years, and at least one Eltarian was able to manifest as energy in the shape of his head while his body was stuck in a time warp.