In the episode "The Sinister Six", Electro appears as a member of the Sinister Six alongside Doctor Octopus, Rhino, Kraven the Hunter, Beetle and Lizard.
In the episode "The Sinister Six", Electro returns in hyper-electrified form. He appears as a member of the Sinister Six alongside Doctor Octopus, Rhino, Kraven the Hunter, Beetle and Lizard.