Captain Blowhole

Captain Blowhole is a major antagonist in the Portal Problem, and the main antagonist of Revenge of the Electric Dolphins. He is the captain and supreme leader of the electric dolphins from Current Line. He is roleplayed by PeaVZ108.

Green Shadow
Captain Blowhole hates Green Shadow just like most of his enemies, as Green Shadow is the leader of the gang from The Portal Problem. He is determined to crush them so that they would not interfere with his plans.

Captain Red Shell
Captain Red Shell is Captain Blowhole's arch-enemy, as he leads the Crab Empire. In Revenge of the Electric Dolphins, it is evident that Captain Red Shell is determined to put an end to the electric dolphins, as the Crab Empire completely ignores Captain Blowhole's demand of their surrender and instead sail straight to Current Line to finish off the electric dolphins.

Blubber
Blubber used to be Captain Blowhole's pet electric whale. Though Blubber was loyal to Captain Blowhole at first, the latter instead mistreats and even abuses him, to the point that Blubber betrays Captain Blowhole. Since then, Captain Blowhole hates Blubber even more.

Starcade
Captain Blowhole holds a grudge against Starcade for assisting the Crab Empire to defeat him and his army of electric dolphins in "Aquatic Adventures". In Revenge of the Electric Dolphins, he uses this to his advantage and threatens to dominate the world to seize her database.

Trivia

 * Although the electric dolphins appeared in "Tribin' the Tides", Captain Blowhole only debuted three episodes later in The Portal Problem in "Aquatic Adventures".
 * It is confirmed that Captain Blowhole will return in an upcoming Christmas story: "Electric Blubberloo".