Kellie Flanagan

On a planet just like Earth that is populated only by children, Kirk's landing party contracts the virus that killed adults while stretching the youngsters' lifespan to hundreds of years. Enduring the natives' bizarre and violent tactics, the trapped party must cure themselves and the children — including one who has a crush on Kirk.

Sam Jones' son Mike idolizes Opie and doesn't understand why he prefers to spend time with a girl instead of him.

A young girl likes Jody, and shows her affection in the only way children know how - she picks on him and hits him.

The twins compete for Uncle Bill's undivided attention. Each seems to think he likes the other twin better.