I'm not talking about sidekicks or partners like Robin who have adventures with the hero, but those spun off into their own solo adventures. The earliest I can think of off the top of my head is Captain Marvel, Jr. Anyone got any earlier examples?
I'm not talking about sidekicks or partners like Robin who have adventures with the hero, but those spun off into their own solo adventures. The earliest I can think of off the top of my head is Captain Marvel, Jr. Anyone got any earlier examples?