Alien Sheik (also known as Sheikian) is a space Kaiju defeated by Terryman.
- Not to be Confused with: Alien Sheik (chojin)
A kaiju parody of Ed "The Sheik" Farhat who first appears in the first serialized chapter as one of the invading aliens. He later reappears and attacks Tokyo, prompting Kinnikuman to go off and fight him despite not being Japan's official hero anymore. This in turn prompts Terryman to quit his mercenary ways and fight purely for the sake of justice. He bears the same name as a character who appears during the American Tour Arc, but it is unknown whether or not they are connected in any way.
In 1979, seven space aliens come to attack Earth. 
Kinnikuman is the only available superhero, and the Earth Defence Force show Kinnikuman a slideshow that features Sheikian. The Earth Defense Force Chief offers the assumption based on racial stereotypes that - as the Kaiju rides a camel and wears certain clothes - that he must be Middle-Eastern. At midday the monsters reveal that they do not want to attack someone they consider so weak, and thus they return to their home planets and refuse to fight Kinnikuman. 
Later, a boy reveals his father was kidnapped by Sheikian.  Terryman refuses to help him, as he does not have enough money, and so Kinnikuman leaves to help the boy's father in his stead. The fact that Kinnikuman would ignore all rules, to help a small boy, inspires Terryman to become a true hero and fight for justice instead of money. Shikian can be seen in the distance, as Kinnikuman fights him and Terryman runs towards him to join the fight. It is uncertain what happens to Sheikian in the aftermath. 
- In the anime he is seen riding a Tauntaun.
|Iwao, Nachiguron, Okamaras, King Ton, Black Shadow, Ukon|
|Sprinter Sword, Gorizaemon, Gonta, Franky, Octopus Dragon, Eragines, Nessie, Daibutsura, Bullgoras, Abdullah, Apollo the Giant, Bottomless Alien, Brutal Alien, Alien Sheik, Tendon, Monster Turkey, Miss Karasu, Mammora, Dai King|