Every time Charlie scrunches his face up to use his "powers", I laughed inside a bit, it's some very canny acting, for sure, and a reminder of how different, tonally, sci-fi was in the 60s compared to today. This is great stuff, either way: the character of Charlie was well-written for what was needed and plays out well (if predictable...I've definitely seen this sort of character before, and he certainly didn't scare me). After a pilot and first episode with female-led guests (both as potential girlfriends for various members of the crew), I enjoyed seeing a male guest star whose romantic interactions are less successful than in previous episodes :-P