Which pulp hero made appearances in Hellboy and BPRD comics before getting his own spin-off?

Lobster Johnson, a popular pulp hero, has made appearances in Hellboy and B.P.R.D. comics before receiving his own spinoff. Lobster Johnson's presence and involvement in these storylines allowed fans to become familiar with the character's unique backstory and abilities, making him a compelling and intriguing figure. This built a strong fanbase for Lobster Johnson, leading to his own successful spinoff series that delves deeper into his adventures and expands the overall mythology of the Hellboy universe.