Along with his brother Thomas, developed the first versions of the
image-manipulation program "Photoshop" in the early 90s.
2007 - Ranked #10 on EW's The 50 Smartest People in Hollywood.
His brother, Tom Knoll, developed the program now known as Photoshop.
Has a cat named "Luna". An early draft for Rogue One had a character named Lunak (Luna Knoll), and the film shot under the working title "Lunak Heavy Industries".