Is he related to a certain Superhero?
No. A lot of clues point towards this, But the child of this hero is a girl. The hero doesn't have any brothers. And if Ryder was the sisters' child, he'd have a different last name. Also, it is not legal for Nickelodeon to approve this since the superhero is Marvel.
To make a long paragraph short, This theory is improbable.
Thanks for giving me more of a challenge you guys! I had to ask my dad for help with this one, as my expertise is Ryder, his is anything Star Wars or superheroes.