Christopher Nolan’s film featuring a character named “The Protagonist” is Tenet. Played by John David Washington, the character is deliberately never given a conventional personal name. He begins as a CIA operative drawn into a secret organization called Tenet and becomes the central figure in a conflict involving inverted entropy and movement through time.
The anonymous name is more than a stylistic joke. It makes the character function as both an individual hero and the narrative’s organizing viewpoint. Other characters refer to him through descriptive labels, while the film gradually reveals that his future actions help create the very organization recruiting him at the beginning. This circular structure mirrors Tenet’s broader interest in cause and effect.
Tenet’s title is itself a palindrome and forms part of the ancient Sator Square, alongside names such as Sator and Arepo. The film’s plot also uses mirrored action, temporal pincer movements, and characters encountered at different points in their personal timelines. Viewers may confuse “The Protagonist” with a generic description, but it is the credited character designation for Washington’s role. Therefore, Tenet is the single canonical answer.