While Mr. Phelps (Peter Graves) is selecting the I.M.F. Team , he is holding a picture of Bruce Geller (Created By) as a prospect for a moment then discards his picture before moving ahead to select Barney (Greg Morris).
The hospital's exteriors were filmed at Mount St. Mary's College in Los Angeles, which had been used previously for the hotel's exterior in the pilot, and would be used again in "The Cardinal" (S3E6) for the monastery's exteriors.
This was Pernell Roberts only sympathetic role of his four appearances on "Mission: Impossible". His other roles were twice as the main villain, and once as a henchman.