Speaker Head

Speaker Head/Classmate

Girl (Chika Nakata)

Coal Miner of Legend (Kouzan Tanaka)

Tramcar-man (Coal Mine Shaft Taro)

Widow (Aiko)

Chef

Grandfather

Grandmother

Newspaper Delivery Man/Citizen Who Goes Mad for a Diamond

Master of a melon Farmhouse

Coal Miner/Melon Thief

Coal Miner/Pet Dog Taro

Coal Miner/Detective

Coal Miner/Detective/Citizen Who Goes Mad for a Diamond

Coal Miner/Citizen Who Goes Mad for a Diamond

Mad Dog of Coal Mine (Mr. Ebisu)

Classmate

Teacher/Truck Driver

Poor Student

Fire Brigade Member

Rescue Crew Member

Rescue Crew Member

Truck Driver

Melon Thief

Policewoman

Housewife

Goro of Kitakitsune

Narration