[1] Duffy also won three Daytime Emmy Awards during his tenure at Klasky Csupo, and received additional nominations for his work on Aaahh!!!

[1] Duffy was also a director, writer, designer and storyboard artist for live-action television commercials, PSAs, and corporate productions, including a series of safety videos for the National Coal Board.

[1] After leaving Hanna-Barbera, Duffy spent much of the 1980s working on productions for other animation studios, including The Real Ghostbusters for DIC Entertainment, G.I.

Joe: A Real American Hero for Sunbow Productions, and Teenage Mutant Ninja Turtles for Murakami Wolf Swenson.

In addition to the shows which earned him Emmy nominations and awards, such as Rugrats, his credits included Duckman, Rocket Power, and All Grown Up!, which aired from 2003 to 2008.