David Wenham has appeared as three different characters over the course of the series:
- episode 12.60 It's My Party: Part 2 (1992) - David Cornish
- episode 12.59 It's My Party: Part 1 (1992) - David Cornish
- episode 8.6 Learning the Lessons: Part 2 (1988) - Scott Galbraith
- episode 8.5 Learning the Lessons: Part 1 (1988) - Scott Galbraith
- episode 7.62 Mozart Rules: Part 2 (1987) - Ambulanceman 1