Who plays Rocky in Project Hail Mary? Meet the “special” star behind 2026’s best character

Turning Andy Weir’s popular novel into a movie meant finding a way to realistically portray Rocky, an alien who’s essentially a sentient rock with five limbs. The filmmakers succeeded, and the resulting character has fantastic on-screen chemistry with Ryan Gosling’s character, Ryland Grace, creating moments that are both funny and emotionally moving.





