I'm pretty sure that Mexican wrestler Electrico is at least based on Spiderman villain Electo.
Silver Shark is a small masked highflyer - the Silver Shark is another name for the shark minnow, a very small fish that is often confused with a shark. Umm...let me think, Danny "The Mountain" Rushmore is a Mt. Rushmore reference.
OH! And my all time favorite Mark Smart = Smart Mark, or a wrestling fan, such as the majority of us, who are 'in the know' in regards to the behind the scenes goings on of pro wrestling.