Cousin Sabrina is a "one time" Marker Comics Superhero Spectacle character.
Sabrina is Emily's caretaker in Superhero Spectacle #11. She takes Emily to a fancy party and after sees a handsome guy, she leaves Emily alone.
Why is that name familiar?Edit
Sabrina is named after Sabrina Gasper in Lincoln Heights. (Don't even bother asking Alex how he knows that. Even he doesn't know)