Michiko Nomura as 志村美智, Shimura Michi, Trixie Shimura Voice

Yoshiko Matsuo as 志村美智, Shimura Michi, Trixie Shimura Voice

Katsuji Mori as 三船剛, Mifune Gō, Speed Racer Voice

Kinya Aikawa as 三船健一 / 覆面レーサー, Mifune Ken'ichi / Fukumen Rēsā, Rex Racer / Racer X Voice

Teiji Ômiya as 三船大介, Mifune Daisuke, Pops Voice

Ryōko Kinomiya as 三船アヤ, Mifune Aya, Mom Voice

Kei Tomiyama as サブ, Sabu, Wilson "Sparky" Sparkolomew Voice

Junko Hori as 三船くりお, Mifune Kurio, Spritle Voice

Hiroshi Ohtake as 三平, Sanpei, Chim-Chim Voice

Speed Racer — Full Cast