The mystery is now solved! I must accept the credit (or blame) for bringing DanRav to PB.
In actuality he is Dr. Who!
His posts on PB document the adventures of a mysterious and eccentric Time Lord known as the Doctor who travels through time and space in his time machine, the TARDIS (an acronym for Time And Relative Dimension(s) In Space), which is a 1950s British police box.
He explores time and space, faces a variety of foes and saves civilizations, helping people and righting wrongs....and makes us think and laugh!