Goro Numata

Goro Numata (沼田 五郎) or Kikkaijin Spark (奇械人スパーク) is a disused Kikkaijin after an unsuccessful operation. He was Shigeru Jo's best friend and the basic prototype of Kamen Rider Stronger.

In the manga Kamen Rider Spirits, he was resurrected by the Badan Empire, but later Shigeru killed him and harried Spark's components. These components helped Shigeru to transform into Stronger again.

Conception
Spark's name is from Kamen Rider Spark, the original concept name for Kamen Rider Stronger during the 1975 TV show's pre-production. This concept can be seen in the Kamen Rider Art Collection Hero Hen book.

Shigeru mentioned a friend that was killed by Black Satan due to a failed cyborg remodeling in second episode of Stronger, but was not named or elaborated on any further in the series. This led Spirits, while non-canon, to expand on him, creating the character of Goro Numata.

Appearances

 * Icon-stronger.png Kamen Rider Stronger
 * Episode 2: The Secret of Stronger and Tackle!
 * Icon-zx.png Birth of the 10th! Kamen Riders All Together!!