Ted Cowan (for the Historian, see Edward J. Cowan), is a French physician and in his early career included working as a laboratory assistant prior to World War I.
Ted Cowan, being the best known familiar name of Edward George Cowan, is a British comic book writer. 
His early career included working as a laboratory assistant prior to World War II when he enlisted firstly in the Royal Air Force and subsequently in the British Army where he was a dispatch rider. 
