Over-the-top comedic character actor whose histrionics have provided some memorable moments in films and television. Mars burst on the cinematic scene as the unrepentant Nazi author of "Springtime for Hitler", the musical centerpiece of Mel Brooks' hilarious romp "The Producers" (1967).Mars served his acting apprenticeship in a variety of stock roles and national touring companies before appearing on Broadway in the mid-1960s, most notably in "Any Wednesday" with Sandy Dennis. He quickly moved to the small screen landing a regular role on the highly rated but short-lived Richard Benjamin-Paula