Conversation so far:
What tv station aired this show?
An American version was on NBC, initially as a pilot episode.
Who starred in this show?
The pilot featured Henry Fonda and Henry Morgan.
What actors were on the series?
The recurring cast included Frost, Morgan, Buck Henry and Alan Alda.

Question: Were there any other well known actors in the cast?
Self-contained rewrite: Were there any other well known actors in the cast of "ThatWasTheWeekThatWas? other than Buck Henry and Alan Alda??