American screenwriter, producer and actor. Personal papers contains an actors file, clippings and correspondences.

Television and film writer, producer and director. 26 episodes of Galidor, an action series for children sponsored by Lego Media International and the Disney network; 13 episodes of Scout's Safari, an action-adventure series for young people set and shot in South Africa; materials relating to The Listener, for which Chehak served as an Executive Producer, shot in Toronto.