Bolt & Float

This unnamed male Seashocker first and only appeared in Shock and Awe. He was befriended by Fishlegs.

Shock and Awe
In this episode, the Seashocker was separated from his pod and ended up in a lagoon. Fishlegs was eager to study the dragon and barricaded the lagoon entrance with Meatlug's lava blasts.

After Fishlegs brought Hiccup and the other Dragon Riders to the lagoon, however, the Seashocker became agitated after a while and attempted to escape his confinements. As Hiccup and the others started to destroy the barricaded lagoon entrance, Fishlegs befriended the Seashocker. When Fishlegs tried to let the Seashocker escape the lagoon, a pack of Scauldrons arrived after being drawn in from the explosions caused by the Dragon rider's dragons. After a lengthy chase and distracting the Scauldrons, the Seashocker managed to escape and reunite with his pod.