|First appearance||The All-New Super Friends Hour|
|First comic appearance||Super Friends #7 (October 1977)|
|Place of origin||Exxor|
|Team affiliations||Super Friends|
|Supporting character of||Wonder Twins|
Gleek is a fictional character appearing in the animated series Super Friends and its related spin-offs. Gleek is the pet of the alien Wonder Twins, Zan and Jayna. He debuted in The All-New Super Friends Hour, which first aired September 10, 1977. Gleek's vocalizations were provided by Michael Bell, who also voiced Zan.
Gleek is a blue alien monkey and the pet of Zan and Jayna, the Wonder Twins. Gleek is often used as comic relief for the series, as the character often gets into mischief. A joke involving Gleek often ends episodes of the Super Friends in which he appears.
Gleek helps the Wonder Twins when they need to travel: Jayna becomes an eagle, Zan becomes water, and Gleek produces a bucket to hold Zan while Jayna carries them both.
Gleek also loves Earth bananas, and in one episode, Gleek packed an extra banana suitcase for visiting their home planet, Exxor, because there are no bananas.
In one episode, other monkeys of Gleek's species appear and try to take over the world. Their leader is able to speak English apparently. They are able to brainwash Gleek and he helps them find the weaknesses of Superman, Wonder Woman, Batman and Robin.
Gleek has a stretchable, flexible tail that allows him to pick up objects and living things, such as bananas or people. He is highly intelligent, capable of understanding spoken English clearly. Gleek can communicate through the use of sign language, acting out scenes, and chattering (an alien monkey-based sound unintelligible to the audience).