Eric Needham

1st appearance: Detective Comics #463

Date of debut: September 1976

Johnny LaMonica

1st appearance: Batman #518

Date of debut: May 1995

Derrick Coe

1st appearance: Birds of Prey #87

Date of debut: December 2005

Other Media Appearances

Young Justice

Superman/Batman: Public Enemies

Batman: Assault on Arkham

Batman: Arkham Origins (Name was only mentioned)