- Yannick Bisson (Detective William Murdoch)
- Helene Joy (Dr. Julia Ogden)
- Thomas Craig (Chief Constable Thomas Brackenreid)
- Jonny Harris (Constable George Crabtree)
- Lachlan Murdoch (Constable Henry Higgins)
Murdoch Mysteries — S1E13
Episode: Annoying Red Planet
Air Date: 2008-04-17
Runtime: 48 min
Overview
By all appearances, Martians are responsible for the hanging death of Rouge Valley landowner Henri Gaston, a Martian-obsessed loner with a shop full of telescopes, charts and journals.