Jordan Stryke (a.k.a. Jordan Dixon) was the brother of Leopold Stryke, also known as the costumed criminal Eel. They each formed costumed identities without the other realizing this fact. Viper concealed this fact by using the alias of "Dixon" as his everyday last name. Together they joined the Crime Wave of the Cowled Commander, and the Viper battled the Falcon and Captain America. During the course of the fight, Viper managed to poison his opponents with darts and escaped. Later, the Falcon discovered the Viper in his home after tracking his alias (through an offhand comment made by the Viper indicating that he was involved in advertising) and captured him. Escaping in an ensuing battle with Plantman and the rest of the Crime Wave, Viper’s identity was discovered by his brother Eel. Soon after, the Crime Wave was defeated by Captain America and the Falcon, and they were sent to prison.