- Hand-to-Hand Combat (Basic)
- Neuro-surgery Hendrickson long ago studied medicine, and once performed emergency surgery to remove a small radio receiver which had been wired into the nerves in Olaf's neck.
- In ground combat, Hendrickson typically carried a Thompson submachinegun and a semi-automatic sidearm.
- This version of Hans Hendrickson (Quality Universe), including all history and corresponding appearances, was initially erased from existence following the collapse of the original Multiverse in the 1985-86 Crisis on Infinite Earths limited series. However the ending of Convergence retroactively prevented that collapse, saving all the alternate realities, though in an "evolved" form. Even though versions of the character may have since appeared, this information does not apply to those versions.
- Hendrickson's nationality has seen some change over the years. At first, he was a Dutchman. Later accounts list him as West German and East German.
- 183 Appearances of Hans Hendrickson (Quality Universe)
- 2 Images featuring Hans Hendrickson (Quality Universe)
- 1 Quotations by or about Hans Hendrickson (Quality Universe)
- Character Gallery: Hans Hendrickson (Quality Universe)