Project Hail Mary Cast Guide and Where to Watch

Here's the full cast of Project Hail Mary (2026) — who plays who — plus where to watch and the essential facts about this movie. Believe in the Hail Mary.

Where to watch

TMDB's U.S. watch-provider data lists Amazon Video, Apple TV Store, Google Play Movies, YouTube, Fandango At Home, Plex. Availability changes by country and date, so check your streaming app before watching.

Cast

Ryan Gosling as Ryland Grace; Sandra Hüller as Eva Stratt; James Ortiz as Rocky (voice); Lionel Boyce as Carl; Milana Vayntrub as Olesya Ilyukhina; Ken Leung as Yao; Priya Kansara as Mary (voice); Mia Soteriou as Dr. Browne

About Project Hail Mary

Science teacher Ryland Grace wakes up on a spaceship light years from home with no recollection of who he is or how he got there. As his memory returns, he begins to uncover his mission: solve the riddle of the mysterious substance causing the sun to die out. He must call on his scientific knowledge and unorthodox ideas to save everything on Earth from extinction.

More like Project Hail Mary

• Solaris
• Stowaway
• The Dead Zone
• The Martian
• Star Trek II: The Wrath of Khan
• Gravity
• The Astronaut
• Star Trek: The Motion Picture

Figures and availability come from public TMDB data and are provided as a sourced reference.