Starring: Jan Chappell, Michael Keating, Paul Darrow, Peter Tuddenham
Headhunter - S4-E6
Revealing mistake: When Avon pushes a button to call Tarrant, the entire control panel tips upward, revealing that it's not anchored to the console at all. (00:12:50)
Headhunter - S4-E6
Revealing mistake: After its "borrowed" head is blown off and it rampages through the base headless, the android mysteriously gains 10 inches in height and has much longer arms. If they'd just found a shorter actor to wear the headless costume, it might have looked more convincing. (00:44:05)
Revealing mistake: The double-bladed axe one of the Decimas uses to attack the station windows is wobbling as he strikes with it. Small wonder he's not getting far at breaking in, with a weapon made of rubber. (00:22:30)
Trivia: The box-like entrances to the underground lair proved problematic for the Space Rat actors. When several of them were supposed to spill out on cue, the box walls and their heavy helmets prevented them from hearing the director, who repeatedly screamed "Action!" to no avail. A lone voice from inside the box eventually shouted back, "Can't hear you!"