*The episode "One False Step" could have been a producer's worst nightmare. Robert Cooper had done a wonderful job re-writing a script that needed a great deal of work, but his description of the Aliens scared the hell out of me: White as mimes, and practically naked. This might have been fine in August, but we were shooting this episode in mid-October when it could easily have been cold (in which case the poor actors and extras would have frozen to death) or raining (in which case the white makeup would have ran down their faces and nearly naked bodies.)(sic) Then there was the matter of casting! Fortunately, we found Colin Heath, a former Cirque performer. He taught the other actors and extras how to move and act in his unique "alien" way. And thankfully, it was sunny and warm throughout the entire shoot.
*Source: Back of card