KAOS steals a secret formula that turns water into vapor and threatens the USA to dry up its entire water supply.
| Actor | Role |
|---|---|
 Don AdamsMaxwell Smart | Maxwell Smart |
 Barbara Feldon#99 | #99 |
 Edward PlattChief | Chief |
 Howard CaineBediyoskin / Dr. Smith | Bediyoskin / Dr. Smith |
 Warde DonovanHotel Doctor | Hotel Doctor |
| BBarry O'HaraDrunk | Drunk |
| MMarc LondonAshkenazi | Ashkenazi |
| FFrank JamusCrilleader | Crilleader |
| NNeil ElliotBellboy | Bellboy |
| GGrant SewallKAOS Announcer | KAOS Announcer |