Ron Frenz is an American comics artist closely associated with the classical Marvel house style of the 1980s and ’90s. He took over The Amazing Spider-Man in 1984, where he drew the first appearance of Spider-Man’s black costume and introduced the Puma and Silver Sable, before partnering with writer Tom DeFalco on a long, character-defining run on Thor that gave rise to Eric Masterson and the Thunderstrike spin-off (1993). Frenz and DeFalco later co-created Mayday Parker, the heroine of the long-running Spider-Girl.