The most amazing thing about the cast, was that Leon Askin, who played General Burkhalter, not exactly a skinny guy, lived to the ripe, old age of 98!
Askin was fantastic as the Russian trade delegate in the movie, “One, Two, Three”
Just in remember 60’s TV shows, I just noticed William Schallert will be 90 next month.
Askin eventually returned to his native Austria and kept acting past age 90 IIRC.