Year Title Role 1982 The Dark Crystal Special mechanical designer 1985 Return to Oz Mechanical characters mechanical designer 1986 Max mon amour Makeup special effects collaborator 1987 The Storyteller (TV series) Special effects creative supervisor 1990 The Witches Animatronic designer Teenage Mutant Ninja Turtles Special effects creative supervisor 1991 Teenage Mutant Ninja Turtles II Special effects creative supervisor The Storyteller: Greek Myths (TV Mini-Series) Special effects creative supervisor 1992 The Muppet Christmas Carol Special effects creative supervisor 1994 The Flintstones Special effects supervisor The NeverEnding Story III Special effects creative supervisor 1995 Babe Special effects creature shop supervisor 1996 Loch Ness Special effects creative supervisor James and the Giant Peach Animatronic puppeteer The English Patient Special effects visual supervisor 101 Dalmatians Special effects creature shop supervisor 1997 The Odyssey Special effects creative supervisor Buddy Special effects supervisor 1998 Lost in Space Special effects creature shop supervisor 2019 Hold Your Breath (video short) Director