|"The Pearl Oyster Defense Directive"|
|Directed by||Akio Jissoji|
|Air Date||October 16th, 1966|
To be added
Actor's name on the left, character played on the right.
- Koji Ishizaka as Narrator
- Susumu Kurobe as Shin Hayata
- Akiji Kobayashi as Captain Toshio Muramatsu
- Sandayu Dokumamushi as Daisuke Arashi
- Masanari Nihei as Mitsuhiro Ide
- Hiroko Sakurai as Akiko Fuji
- Bin Furuya as Ultraman
- Masao Nakasone as Ultraman (grunts)
- Teruo Aragaki as Gamakujira
- Sen Yano as Jewelry Store Owner
- Ben Hiura as Pearl Oyster Haul Truck Driver
- Minori Terada as Truck Driver's Assistant
- Despite being the fourteenth episode of the series, The Pearl Oyster Defense Directive was the fifteenth episode to be made during the production of Ultraman.
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