Ardy is a worker at the Moon 13 research base who is responsible for sending the movie to Jonah and the Bots. He is located in Moon 14, which is a level below Moon 13. He is portrayed by series creator Joel Hodgson.
His catchphrase "Movie in the hole!" is a take on the old phrase "Fire in the hole", a warning that an explosive detonation in a confined space is imminent. Comically warning the audience how bad the weeks experiment will be. (Sadly for Jonah, They all have the same warning.)
Ardy pronounces his name phonetically ("R.D."), a reference to "Research & Development", which is a crucial part of any scientific research.
Using forced perspective, Ardy is made to look much further away from the tank, as shown in relation to the size of the utility truck parked next to the tank. (See http://tinyurl.com/lolnez6)