An animator and producer, Guess worked at the National Film Board of Canada (NFBC) from the late 1950s until 1963. There, he worked on the animated short THE GREAT TOY ROBBERY (1963), directed by Jeff Hale and written by Derek Lamb. After receiving a large inheritance, Guess relocated to San Francisco, where he founded the now-defunct animation company, Cameron Guess & Associates in 1964. He was joined by Hale, Lamb and animator Barrie Nelson. The company produced two animated shorts, THE WELL (1965) and THE SHEPHERD (1967), the latter of which was nominated for an Academy Award. Hale says he directed THE SHEPHERD and Lamb wrote it and did marvelous, unique backgrounds using cutouts. Hoever, the story goes that on Christmas Eve, just before the film was completed, Guess invited Lamb and Hale out for drinks. After an enjoyable drink, Guess said "You're both fired," and he meant it. Hale says they were fired so Guess could take full credit for the film. And he did. When the theatrical cartoons industry declined in the mid-1970s, Guess left the animation business and moved to Florida.  Nominated for Short Subjects (Cartoons) 1970: THE SHEPHERD - Producer 1 nomination