The TARDIS arrives on the planet Terra Alpha, where the Seventh Doctor and Ace discover a society in which sadness is against the law - a law enforced zealously by the brightly uniformed Happiness Patrol. The planet is ruled by Helen A with the aid of her companion, Joseph C, and her carnivorous pet Stigorax, Fifi.

The Doctor

Ace

Helen A

Joseph C

Daisy K

Gilbert M

Susan Q

Priscilla P

Silas P

Harold V

The Kandyman

Trevor Sigma

Killjoy

Sniper 2

Newscaster (voice)
November 16, 1988

The Doctor

Ace

Helen A

Joseph C

Daisy K

Gilbert M

Susan Q

Priscilla P

Silas P

Harold V

The Kandyman

Trevor Sigma

Killjoy

Sniper 2

Newscaster (voice)

