Diego Alcazar is a fictional character from General Hospital, an American soap opera on the ABC network.

Ignacio Serricchio originated the role of Diego in October 2004 and portrayed him until the character's supposed death in November 2006.

Serricchio returned briefly in 2008, when it is revealed Diego is alive and terrorizing the citizens of Port Charles as the Text Message Killer.

Ignacio Serricchio joined the cast in 2004, and remained on contract until November 2006, despite being off-screen from December 2005 until March 2006.

After being taken in as a foster child by Courtney Matthews,[3] 17-year-old Diego began acting out with Brook Lynn Ashton.

Eventually he finds out his father is crime boss and arms dealer Lorenzo Alcazar, and Maria Sanchez, who Diego grew up believing was his sister, is actually his mother.

In May 2005 Diego takes a liking to Maxie Jones and breaks up with his current girlfriend, Brook Lynn.

It eventually turns out Diego is the Port Charles University stalker who had been drugging girls and taking pictures of them, including Maxie and Brook.

[4] He claims he was getting revenge for the death of his cousin, Sage Alcazar, who was locked in a freezer by Brook and Georgie Jones leading up to her stabbing by Mary Bishop.

In November 2006, Diego works with Lorenzo to try to frame Sam McCall, Jason Morgan, and Damian Spinelli.

In September 2007, Jason Morgan and Carly Corinthos Jacks find her nanny Leticia's body on the floor with a telephone cord wrapped around her neck.

He begins receiving text messages, explaining that the killing will not stop at Leticia: "Nanny got the phone cord.

Then Carly receives a text message from an unknown number including photos of her and Jax that had been taken through her phone without her knowledge.

At the Black and White Ball, Carly sends text messages to the killer, planning to meet him in the study.

Word of Emily's passing spreads as everyone mourns her death, and fears of the Text Message Killer grow.

Meanwhile, a mysterious new waiter at Kelly's, Daniel, is seen to be very suspicious during conversations that involve the Text Message Killer.

Coop's DNA is a match to the skin found under Georgie's fingernails, furthering his position as the prime suspect.

Sam is convinced the Text Message Killer is alive, meanwhile Maxie enlists Spinelli's help with proving Coop's innocence.

Logan Hayes begins acting suspiciously, and it is revealed that his ribs are badly bruised right after Sam's fight with the killer.

They warn his girlfriend Lulu Spencer, who sneaks into his apartment and finds a ski mask, gloves and a cell phone piggy back device.

When Diego leaves the apartment, he finds Elizabeth Webber standing outside and drugs her, kidnaps her, and handcuffs her in the back seat of his car.