The Very Important Party Guests Affair
In "The Giuoco Piano Affair" there is a party at the begining and other at the very end of the episode. Few people knows it, but some of the guests are very important people in The Man From UNCLE series. The man above playing chess is Norman Felton, the MGM/Arena producer that started everything in 1963.
The mustachioed writer above is Joseph "Doc" Calvelli, Associated Producer. He is observed by Illya Kuryakin (David McCallum). The scene have a metalinguistic trick hard to explain.
On the left is Richard Donner, the episode director. He plays an inconveniently drunk guest. At his side are Illya Kuryakin (David McCallum) and Marion Raven (Jill Ireland). McCallum and Ireland were married in real life.
The charming Texan dancing with Jill Ireland is the man who created the whole Man From UNCLE universe: Sam Rolfe.