The Glass House

Hugo Slocum

Jonathon Paige

Brian Courtland

Lennox

Warden Auerbach

Ajax

Sinclair

Officer Brown

Bree

Bibleback

Steve Berino

Pagonis (uncredited)

Alan Alda on his autobiography "Never Have Your Dog Stuffed - and Other Things I've Learned" claims that this movie was shoot in real prison with real prisoners as extras. During the filming of the movie, its director Tom Gries made jokes with prisoners that they should take Alan Alda as their hostage because that is the only way they can escape from prison. On the last day of shooting, two prisoners approached Alda and put an improvised knife on his throat telling him that he is their hostage. Luckily prison guard arrived shortly after and carefully negotiated with prisoners to let Alan Alda go. They let him loose telling him that they were just joking. Alda also states that no prisoner was punished for the incident.

There is a scene where the young man is asked to buy cigarettes. He finds out why and begins to argue with the other 2 cons about it. As they all 3 walk into the corridor at the the top left area of the screen, clearly the Mic is seen for about 2 seconds. The same thing happens again near the end of the film, when the guard is talking to the warden in his office.