Gel-Shocker
Kani-Koumorii (Crab-Bat) - episodes 78 and 79 (last surving Geldam Gôseikaijin goes to Japan)
Geldam and Gel-Shocker's Gôseikaijin were based on a combination of two creatures.
Gel-Shocker soldiers were stronger than the Shocker soliders but were dependent on a drug which they had to take every three hours
or they would die and their bodies burst into flamen. In later episodes the Gel-Shocker soliders were purple instead of blue.
Like Shocker, Gel-Shocker had its science corps as well.
Black Shogun (General Black) - episodes 80 through 98 and Kamen Rider V3 episodes 27 & 28
Gel-Shocker's Eminent Chief, from Africa.
Played by Matasaburo, Tamba,
who adlibed Black Shogun's facial tic.
Sasori-Tokages (Scorpion-Lizard) - episode 81
Gurage-Wolf (Jellyfish-Wolf) - episode 82
Ino-Kabuton (Rhino-Elephant Beetle) - episodes 83 (murderer about to be executed is taken from prison to create this Gôseikaijin) and 98
Isogin-Jaguar (Sea Anemone-Jaguar) - episode 84 - (unsual for a Gel-Shocker Gôseikaijin his boots were pink not yellow)
Utsubo-Kames (Moray Eel-Turtle) - episode 85 - (violent criminal transformed into this Gôseikaijin)
Washi-Kamakiri (Eagle-Mantis) - episode 86
Delivery Man of Death - episode 87 (delivers letters predicting the receipiant's death)
Kumo-Lion (Spider-Lion) - episodes 87 (makes the predictions come true while the Delivery Man watches) and 98
Neko-Yamorii (Cat-Gecko) - episode 88
Canary-Cobra - episode 89 - joined briefly at the end by Nesu-Condor
Nesu-Condor (Mouse-Condor) - episodes 89 and 90
Upgraded Nesu-Condor (Mouse-Condor) - episode 90 (upgraded with a beak weapon,after failing to kill Tachibana, Tobei)
Mukades-Tiger (Centipede-Tiger) - episodes 91 & 98
Shonen Gel-Shocker Tai (Boy's Gel-Shocker Squad) - episode 91 (brainwashed members of the Boy's Kamen RIder Squad)
Shocker RIder (#1) - episode 91 (appears briefly at the end)
Baitori-Hachis (Venus Flytrap-Bee) - episode 92, 93, 98
Shocker RIder (#1) - episodes 91-94
Ei-Dokuga (Stingray-Poison Moth) - episodes 93, 94, 98
Namecushi-Kinoko (Slug-Mushroom) - episodes 93, 94
Shocker Riders - #1 episodes 91-94, #2, #3, #4,#5, #6 episodes 93 & 94
The six evil riders (In first photo they are in reverse order from #6 through #1)
Kara-Ocksu (Crow-Ox) - episodes 95 and 98
Saboten-Bat (Cactus-Bat) - episode 96 and 98
Hiru-Chameleon (Leech-Chameleon) episodes 97 and 98
Black Shogun monster form, used against both Kamen Riders
After defeating Black Shogun the Double Riders finally
confronted the Great Leader of Shocker and Gel-Shocker
Character names and most of the photos provided by Igadevil.