It was Val Guest's view that the Yeti should be kept largely off-screen, bar a few glimpses of hands and arms, leaving the rest to the audience's imagination. By contrast, Nigel Kneale felt that the creatures should be shown in their entirety to get across the message of the script that the Yeti are harmless, gentle creatures. In the climactic scene where Rollason comes face to face with the Yeti, only the eyes are seen: Guest used Fred Johnson to play the Yeti in this scene, relying on his "eyes of worldly understanding" to convey the benign nature of the Yeti.