Mr. Clemens and Mark Twain author Justin
Else clues• Kotter actor
• Welcome Back, Kotter star
• Actor Gabe of 'Welcome Back, Kotter'
• Big name in test preparation
• Comic competitor*
• Comic/actor Gabe
• Film director Jonathan
• Gabe of Welcome Back, Kotter
• Gabe who played Kotter
• GMAT class offerer
• He was Kotter
• He was TV's Kotter
• Kotter player on TV
• Kotter portrayer
• Surname meaning priest
• Test prep company
• Testing surname