Paul Wegener, Action Star
The fight scene at film's end was pretty exciting. Rarely has there been a mad scientist who looked like he could kick the bejeebers out of his opponent. Big, broad and burly, Paul "The Golem" Wegener was not one to easily tangle with; even at middle age, we could believe he was more than a match for the film's youthful hero, no small man and a tough guy in his own right -- he even lifted Wegener at one point. (This hero, Dr. Arthur Burdon, played by Iván Petrovich, played a medical doctor extraordinaire ... another scientist who could effectively put up his dukes.)
The part I got a kick out of was the way in which Wegener got out of a hold by biting Dr. Burdon's hand! True to form, not very heroic at all.
As a side note, how disappointing that the third scientist, Dr. Porhoet, had the audacity to burn the page from the ancient magic book giving the formula for creating life. (The evil Wegener character ripped this page out of the library, like Jack Nicholson selfishly did in CHINATOWN.) Dr. Porhoet, if he were a true scientist, should have at least felt obligated to return this page to the library, and at best, should have followed up on what one would think was his natural scientific curiosity, to see whether the formula was on the right track or not. A truly mediocre and unethical scientist was he.