My Man From UNCLE watch reached a milestone this week: the Shatner/Nimoy episode! It really didn't disappoint. Great, well thought out fun that really gave David McCallum a chance to show off for the first time.
The surprising thing was Shatner himself. The received wisdom seems to be he was much more of a "Proper" (to use an unfair term) character actor before Trek and it's only during and after than show the full hamosaurus we all now know and love fully emerged. This isn't the case here, he gets to play drunk, drugged and stressed and pretty much goes exactly as large as you'd expect, especially during the drunk scene that contains his first meeting with Nimoy (mind, he's actually playing a man who is only pretending to be drunk and scared--though he is really drugged at one point--so he may in fact very cleverly be conveying how a non actor would play those things. But considering that he does this in exactly the way you'd expect William Shatner to play a scene like that for real, perhaps not).
However, and all credit to the man, his star quality shines through. The over the top moments are fun rather than cringe inducing and he completely and utterly dominates every single scene he's in, even against the two power houses of charisma that are Vaughn and McCallum. If you caught this episode randomly without having heard of William Shatner you'd expect him to go on and do great things, and would probably IMDB him out of curiosity.
Nimoy on the other hand is perfectly fine in his supporting henchman role, but even with his last scene allowing some grandstanding, if you'd not heard of him before he wouldn't really stand out to you.
The only downside was how bad Shatner's wig was, vastly inferior to his Trek ones and actually less convincing that the brunette wig David McCallum had to wear in-story as a disguise and which we see get pulled off!