Arnold Schwarzenegger could have been Mario’s movie villain. He was approached to play King Koopa in the 1993 Super Mario Bros. film, but passed. Dennis Hopper got the part instead, leaving us with a casting what-if that’s almost as strange as the finished movie.
Try picturing Arnold in Dinohattan for a moment. This was already a Mario adaptation with a human-looking reptilian ruler, so a different leading villain could have taken it in any number of directions. Just knowing he was approached is enough to get the imagination going.
The casting possibility was real
A 1992 Los Angeles Times production report mentions the approach to Schwarzenegger.
Game Informer’s retrospective also names Michael Keaton among the actors who were approached and declined. Those accounts establish that Arnold was considered, though they don’t tell us he was the first choice or explain why he passed.

Arnold comes with a screen presence you recognize immediately. Before he says a word, you’re already expecting something from him. It’s fun to wonder what the filmmakers would have done with that in a world as odd as this one.
Bowser became King Koopa
Bowser is easy to recognize in the games: horns, shell, huge silhouette. Hopper’s King Koopa takes a different approach. He looks human enough to hold a conversation, but there’s something unpleasantly off about his face.
That’s the role Arnold was being considered for. Putting his face on the familiar game version of Bowser makes a quick joke, but the film had its own idea of Koopa. Whoever took the part would have had to fit into that version of Mario’s world.

The small trick behind Hopper’s unsettling face
Makeup artist Jeff Goodwin explained how they got Hopper’s look in his 2009 interview with the Super Mario Bros. Movie Archive. He removed Hopper’s eyebrows and added reddish texture around the eyes. Michelle Johnson’s hairstyle helped finish the effect.

Goodwin recalled that Hopper liked it. Removing the eyebrows was a small change with a big payoff: you recognize the actor, then find yourself looking again to work out what’s wrong. The face feels strange before you can put your finger on the reason.
It’s easy to focus on the famous name that might have been on the poster. That makeup-room detail brings you back to the people who actually made Koopa work on screen, and to Hopper wearing the look they built for him.
A Mario movie that could have sounded very different
We’ll never know how Arnold would have played the part. Hopper’s performance is the one we have, complete with the unsettling face and all the film’s peculiar choices around it.
Still, it’s hard to resist the thought of Mario coming face to face with the Terminator’s star. Arnold passed. Hopper took the throne. More than thirty years later, that unused casting possibility is still good for a conversation.
Sources
- Los Angeles Times: 1992 production report, for the Schwarzenegger casting approach.
- Game Informer: Mario’s Film Folly, for the actors approached and the declined role.
- Super Mario Bros. Movie Archive: Jeff Goodwin interview, for the makeup process and production photograph.
- Wikimedia Commons: Schwarzenegger’s 1991 portrait, for the photograph and its documentation.
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