How to Train Your Dragon Star Cast as Robin in DC's Dynamic Duo

• Primary Subject: Mason Thames' official casting as Dick Grayson in DC Studios' Dynamic Duo.
• Key Update: DC Studios co-CEO Peter Safran officially confirmed that The Black Phone and How to Train Your Dragon star Mason Thames will voice Dick Grayson (Robin) in the upcoming hybrid animated movie Dynamic Duo after "auditioning the s*** out of it."
• Status: Confirmed
• Last Verified: November 4, 2026
• Quick Answer: Mason Thames has been officially cast as Dick Grayson in DC's Dynamic Duo, voicing the iconic Boy Wonder alongside Jason Todd in an origin story.

DC Studios is officially expanding the Bat-Family in a fresh new direction. After months of casting rumors, DC Studios co-CEO Peter Safran formally confirmed that rising star Mason Thames (The Black Phone, How to Train Your Dragon) has secured the role of Dick Grayson in the upcoming animated feature, Dynamic Duo.

Mason Thames Confirmed to Voice the Boy Wonder in DC Studios' Dynamic Duo

Credit: Live Nation

In a recent interview with Collider, Safran revealed that the young actor passionately pursued the iconic role out of deep personal passion for the comic book hero, praising Thames for his sheer enthusiasm as he came into the screen test in the DC offices with his father.

"Mason always wanted to be Dick Grayson. He just did. And he came in, and auditioned the s*** out of it, and was awesome," Safran said. "He's a wonderful young actor, but boy, did he want this. He was just obsessed. When he came over to the DC offices, he came over with his dad at the time, and we've got tons of great archives and stuff in there, and wanted to take a picture of everythinga nd with everything. He's a fan."

Unlike traditional adaptations, Dynamic Duo will follow the gritty origins of Dick Grayson and Jason Todd long before they step fully into their legendary superhero mantles.

Directed by Swaybox co-founder Arthur Mintz, Dynamic Duo promises a visual spectacle that goes beyond traditional animation as they combine practical puppetry and live-action elements alongside digital animation, offering a completely fresh aesthetic for Gotham City.

What DC Fans Can Expect From Dynamic Duo and Mason Thames' Performance

Credit: Constantin Film

After rising to fame thanks to his performance as Hiccup in the live-action How to Train Your Dragon, joining the DC franchise marks a major milestone for both his career and his future in the franchise.

Dynamic Duo centers on Dick Grayson and Jason Todd as two orphan thieves roaming Gotham's underworld together before taking on the name that defines them as Batman's most famous sidekicks.

Given James Gunn and Peter Safran's mandate to be on the lookout for fresh new talent across DC Studios projects, Thames' passionate voice performance could open the door for future appearances across DC's slate, even going beyond voice roles.

For now, Dynamic Duo is slated to release on September 22, 2028. Stay tuned for more updates on this story right here on Epicstream!