1 Panahon
22 Episode
原始少年リュウ - Season 1 Episode 20
- Taon: 1972
- Bansa: Japan
- Genre: Action & Adventure, Animation
- Studio: TBS
- Keyword: anime
- Direktor: Shotaro Ishinomori
- Cast: Makio Inoue, Eken Mine, Gorō Naya