Counting over 4 decades experience creating 2-D and 3-D animated cartoons in the USA and abroad, Gresham has directed and supervised award-winning series and shorts for the BBC, Cartoon Network, MTV, Nickelodeon, Sesame Street, Disney, Scholastic, Fox, SyFy, and HBO, including such shows as "The Cramp Twins", "Sniz & Fondue", "Dennis & Gnasher", and "Speedbump The Roadkill Possum".