* ActingForTwo: Tony Randall plays seven different characters, hence, the "7 Faces".
* CreatorKiller: The film's failure at the box office resulted in Creator/GeorgePal not making another project for four years. It was the last film he directed.
* DyeingForYourArt: Tony Randall shaved his head to play Dr. Lao. It made it easier to apply the make-up for the different characters he played.
* FakeNationality: The Chinese Lao (not to mention the Turkish Apollonius, British Merlin, Greek Pan and Medusa, and Nepalese Snowman) are all played by European-American Randall. No wonder his accent "comes and goes."
* StillbornFranchise: In January 1965 it was announced that Tony Randall would return in a follow up, but no sequel was ever made.
* WhatCouldHaveBeen: Creator/PeterSellers was originally going to play Dr. Lao but he was too busy to fit it into his schedule. Creator/RodTaylor, Creator/TerryThomas and Creator/DickVanDyke were also considered.
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