Voice actor Toshiyuki Morikawa smiles as he watches Robert Downey Jr.'s video message naming him Doctor Doom's Japanese voice, shown in a corner of the frame. Image: Marvel Studios Japan
Entertainment

Robert Downey Jr. Named Doctor Doom’s Japanese Voice Himself. Toshiyuki Morikawa Says He and Iron Man’s Late Voice Started Out Together

Marcus Delgado · November 7, 2026 · 5 min read

Marvel held one name back when it announced the Japanese dub cast of Avengers: Doomsday. This week it filled the gap in the most personal way it could: Robert Downey Jr. recorded a video message naming Toshiyuki Morikawa as the Japanese voice of Doctor Doom, and used the same message to thank Keiji Fujiwara, the actor who voiced his Iron Man in Japan until he died in 2020.

"Hello, Japan. Today I'm here to share a special announcement," Downey says, before introducing "Morikawa-san as the Japanese voice of my character, Doctor Doom." Then comes the line Japanese fans have been passing around all week: "This new chapter carries forward the incredible work Keiji Fujiwara brought to our past films, whose legacy lives on."

Doom was the last seat left. Disney had already named 29 Japanese voices for the film, with Yuichi Nakamura back as Steve Rogers, and kept Doom's voice under wraps while fans guessed, The Disney Scoop reports. Avengers: Doomsday opens on 18 December, the same day in Japan and the United States.

Continue reading