Apollo Geist is a major antagonist in the tokusatsu series Kamen Rider X. Serving as the Chief of Security for the evil organization G.O.D., he is a ruthless and cunning enemy who relentlessly pursues the protagonist, Kamen Rider X. Apollo Geist is known for his sharp intelligence, strategic mind, and formidable combat skills. His iconic look features a distinctive helmet and a cape, making him one of the most memorable villains in the Kamen Rider franchise.