<P> Police Detective Sergeant Eugene Moretti (Charles Durning) calls the bank to tell Sonny the police have arrived . Sonny warns that he and Sal have hostages and will kill them if anyone tries coming into the bank . Sal tells Sonny that he is ready to kill the hostages if necessary . Detective Moretti acts as hostage negotiator, while FBI Agent Sheldon (James Broderick) monitors his actions . </P> <P> Howard Calvin (John Marriott), the security guard, has an asthma attack, so Sonny releases him when Moretti asks for a hostage as a sign of good faith . Moretti convinces Sonny to step outside the bank to see how aggressive the police forces are . Using head teller Sylvia "The Mouth" (Penelope Allen) as a shield, Sonny exits the bank and begins a dialogue with Moretti that culminates in his shouting "Attica! Attica!" (invoking the recent Attica Prison riot), and the civilian crowd starts cheering for Sonny . </P> <P> After realizing they cannot make a simple getaway, Sonny demands that a helicopter be landed on the roof to fly him and Sal out of the country . When they are informed that the asphalt roof of the bank will not support a helicopter, Sonny demands that a vehicle drive him and Sal to an airport so that they can board a jet . He also demands pizzas (which are delivered to the scene) for the hostages and that his wife be brought to the bank . When Sonny's wife, Leon Shermer (Chris Sarandon), a pre-operative transgender woman, arrives, she reveals to the crowd and officials one of Sonny's reasons for robbing the bank is to pay for Leon's sex reassignment surgery, and that Sonny also has an estranged divorced wife, Angie (Susan Peretz), and children . </P> <P> As night sets in, the lights in the bank all shut off . Sonny goes outside again and discovers that Agent Sheldon has taken command of the scene . He refuses to give Sonny any more favors, but when the bank manager, Mulvaney (Sully Boyar), goes into a diabetic shock, Agent Sheldon lets a doctor (Philip Charles MacKenzie) through . While the doctor is inside the bank, Sheldon convinces Leon to talk to Sonny on the phone . </P>

Who played sonny's wife in dog day afternoon
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