Writer · Born 1934
The Very Best of the Muppet Show: Volume 3
2001 · Writer
The Very Best of the Muppet Show
1999 · Writer
The Very Best of the Muppet Show: Volume 2
Masters of the Universe
1987 · Writer
Gonzo Presents Muppet Weird Stuff
1985 · Writer
Supergirl
1984 · Screenplay
Nate and Hayes
1983 · Writer
The Dark Crystal
1982 · Screenplay
Running Scared
1980 · Screenplay
Fore Play
1975 · Writer
Between Time and Timbuktu
1972 · Writer
Dealing: Or the Berkeley-to-Boston Forty-Brick Lost-Bag Blues
