|This article is about a/an villain in the Kamen Rider Series.|
- "Shocker transform!"
- ―Shocker Leader III's transformation roar[src]
- "Shocker soul forever!"
- ―Shocker Leader III's last words[src]
Kamen Rider Brain
Behind the scenes
Shocker Leader III is portrayed by Diamond✡Yukai. As Oogumo Great Leader, his suit actor is Kazutoshi Yokoyama (横山 一敏 Yokoyama Kazutoshi). In Kamen Rider Drive Saga: Kamen Rider Brain, he is voiced by Tomokazu Seki (関 智一 Seki Tomokazu).
Oogumo Great Leader is designed by Takayuki Takeya, who designed several monsters in Kamen Rider Series. The conception of Oogumo Great Leader is inspired from the early designs of Heart Roidmude, another monster leader who also designed by Takayuki.
- His Spider motif, as well as being shared all the way back to the very first monster, Spider Man, is also shared with the Great Leader's Black Satan incarnation from Kamen Rider Stronger.
- The suit of Oogumo Great Leader's body is recolored from the Super GingaOh in Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max.
- During his appearance, he utters the line "From now on, this is our stage!" (これからは俺たちのステージだ！ Kore kara wa ore-tachi no sutēji da!), which is oddly similar to Kouta Kazuraba's "This is our stage now!" (ここからは俺たちのステージだ！ Koko kara wa ore-tachi no sutēji da!) catchphrase.
- Oogumo Great Leader has Double Riders' "insect wings" design on his back.
- Uchusen Yearbook 2018 - Page 11