Thaddeus Brown is a resident of Earth-51.
At some point in time, Thaddeus Brown trained Harrison Sherloque Wells in the art of escape. When Barry Allen travelled to Earth-3 to seek assistance from Dr. Jay Garrick, Garrick showed Barry a diagram of the multiverse which had Thaddeus's name labelled on Earth-51.
Behind the scenes
- In the DC comics, Thaddeus Brown was an extraordinary circus escape artist, and the first person to take up the name of Mister Miracle.