Creator
Bruce Timm, Paul Dini
  
David Michelinie, Todd McFarlane
  
In Comics
The Batman Adventures #12 - Batgirl: Day One
  
Web of Spider-Man #18 - The Longest Road
  
Relatives
Barry Quinzel (brother), Sharon Quinzel (mother), Nick Quinzel (father), Jenny Quinzel (niece), Nicky Quinzel (nephew)
  
Carl Brock (father, estranged), Janine Brock (mother, deceased), Mary Brock (sister), Ann Weying (ex-wife, deceased), Symbiotes relatives: Toxin Symbiote (current symbiote, former grandson), Venom Symbiote (former symbiote, grandfather, former brother), Agony, Phage, Riot, Lasher (uncles, former sons), Scorn (sister, former niece), Carnage (father, former son), Scream (aunt, former daughter, deceased), Hybrid (uncle, former son, deceased)