Mahha GoGoGo The Man Behind the Mask (1967–1968) Online
- Original Title :
- The Man Behind the Mask
- Genre :
- TV Episode / Animation / Action / Adventure / Comedy / Family / Sci-Fi / Sport
- Year :
- 1967–1968
- Directror :
- Takashi Nishioka
- Cast :
- Katsuji Mori,Nair Amorim,Jack Curtis
- Writer :
- Tatsuo Yoshida,Jinzô Toriumi
- Type :
- TV Episode
- Time :
- 24min
- Rating :
- 6.8/10
A masked maniac takes the Mach 5 team hostage and forces Speed to carry out art gallery robberies.
| Episode credited cast: | |||
 | Katsuji Mori | - | Gô Mifune (voice) (as Yukiya Tanaka) |
| Rest of cast listed alphabetically: | |||
 | Nair Amorim | - | Gorducho |
| Jack Curtis | - | Pops Racer (voice) |
| Cleonir dos Santos | - | Speed Racer |
 | Peter Fernandez | - | Speed Racer / Rex Racer (voice) |
| André Filho | - | Corredor X |
| Jack Grimes | - | Chim-Chim / Sparky (voice) |
| Allan Lima | - | Narrador |
| Milton Luiz | - | Inspetor Detetor |
| Joaquim Luis Motta | - | Vozeiros |
 | Corinne Orr | - | Trixie / Spritle Racer / Mom Racer (voice) |
| Paulo Pereira | - | Pops Racer |
| Nelly Valverde | - | Trixie |