In the 1975 film *Dog Day Afternoon*, the narrative is driven by layers of secrets that are gradually stripped away as the 14-hour bank robbery turns into a media circus. The characters keep secrets ranging from personal identity and private motivations to tactical deceptions.
### 1. Sonny Wortzik (Al Pacino)
Sonny is the primary keeper of secrets, many of which he hides not only from the police and the crowd but also from his partner, Sal.
* **The Motive for the Robbery:** The central twist of the film is that Sonny is not a career criminal. He is robbing the bank to pay for his partner Leon Shermer’s gender-reassignment surgery. This is kept secret from the hostages and the police until mid-way through the standoff when Leon is brought to the scene.
* **His "Double Life":** Sonny is keeping the secret that he is essentially leading two separate lives. He is legally married to a woman named Angie, with whom he has children, but he also considers himself "married" to Leon (having had an unofficial ceremony).
* **Amateurism and Incompetence:** Sonny tries to maintain an image of a confident, high-stakes robber—even leading the crowd in the "Attica!" chant to gain public support. However, his secret is that he has no real plan. He is a former bank teller who is in over his head; he is horrified to find only $1,100 in the vault because the armored car pickup happened earlier that morning.
* **His Will:** In a late scene, Sonny dictates his will to a hostage. He reveals a secret sense of guilt, attempting to divide his life insurance and the meager proceeds of the robbery between Angie and Leon, effectively acknowledging his failure to provide for either family.
### 2. Sal Naturile (John Cazale)
Sal is a tragic figure who keeps his internal world tightly guarded, revealing a dark, fatalistic outlook as the night progresses.
* **Death Over Prison:** Sal keeps his ultimate resolve secret until it becomes clear they are trapped. He quietly admits to Sonny that he will not go back to prison under any circumstances. His "secret" is his total lack of fear of death compared to his absolute terror of incarceration.
* **Superstitious Health Concerns:** In a moment of dark irony, Sal reveals he doesn't smoke because he's afraid of getting cancer—a secret moral/health code he maintains even while threatening to kill hostages with a submachine gun.
### 3. Leon Shermer (Chris Sarandon)
Leon’s secrets are rooted in trauma and the struggle for identity in a 1970s society that did not understand her.
* **Suicidal Desperation:** Leon’s primary secret is her recent history of suicidal ideation and hospitalization, which was the catalyst for Sonny’s desperate robbery. Leon initially tries to keep the volatile nature of her relationship with Sonny private, but under police pressure, she reveals that the "marriage" was a source of immense stress rather than a romantic ideal.
### 4. The Police and FBI (Detective Moretti and Agent Sheldon)
The law enforcement characters use secrets as a tactical weapon to end the standoff.
* **The Assassination Plan:** While the police (specifically Detective Moretti) act as though they are negotiating in good faith for a getaway plane, the FBI (Agent Sheldon) is keeping a secret tactical plan. They never intend for the plane to leave the ground. Their secret is the "limousine plan": they wait for a moment of distraction at the airport to execute Sal and arrest Sonny, a deception they maintain until the final seconds of the film.
### 5. Bank Manager Mulvaney and the Hostages
* **Early Deflection:** At the start of the robbery, Mulvaney tries to keep the robbery a secret from the outside world for as long as possible. When a neighbor knocks on the door because they see smoke (from Sonny burning the bank registers), Mulvaney tries to hide the truth to protect his staff, telling the neighbor everything is fine.
* **The "Empty" Vault:** Mulvaney keeps the secret of the bank’s daily operations—specifically that the large cash delivery Sonny was expecting had already been picked up. Sonny only discovers this after he has already committed to the heist, making the entire "secret" motive for the robbery futile from the start.
### 6. Stevie (The Third Robber)
* **Cowardice:** Stevie, the third accomplice seen at the very beginning, is keeping the secret of his own lack of nerve. He hides his terror until they are actually inside the bank, at which point he immediately abandons his partners and flees, a betrayal of the "secret" pact of loyalty the three men supposedly shared.