Born one of a set of quadruplets Robert Courtney became a private investigator alonside two of the others, while the third went on to become Captain Stingaree, a Batman villain. In his first outing, Captain Stingaree attempted to uncover Batman's secret identity. Somehow Stingaree had become convinced that his three brothers were actually Batman. Batman approached the Courtney brothers to pose as Batman and act as bait for Stingaree. This allowed the real Batman and the Flash to capture Captain Stingaree.
- Investigation: Robert Courtney is a Private Investigator.
- Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
- 2 Appearances of Robert Courtney (Earth-One)
- 1 Images featuring Robert Courtney (Earth-One)
- Quotations by or about Robert Courtney (Earth-One)
- Character Gallery: Robert Courtney (Earth-One)