Detective Lieutenant Vincent D'Agosta is a fictional character appearing in the novels of Douglas Preston

Douglas Preston

Douglas Preston is an American author who has written seventeen popular techno-thriller and horror novels, four alone and the rest with Lincoln Child...

 and Lincoln Child

Lincoln Child

Lincoln Child is an author of seventeen techno-thriller and horror novels. He often writes with Douglas Preston. Many of their novels have become bestsellers, and one, Relic, was adapted into a feature film...

. He is an Italian New Yorker

Italian American

An Italian American , is an American of Italian ancestry. The designation may also refer to someone possessing Italian and American dual citizenship...

 and a main character in several different storylines.

Fictional character biography

D'Agosta's first appearance is in Relic, as the NYPD detective in charge of the Mbwun museum murders. He and Agent Pendergast are adversaries for much of the investigation, but D'Agosta is eventually able to accept his help and the two work together to solve the mystery and save innocent lives. D'Agosta returns in Reliquary

Reliquary (novel)

Reliquary is the 1997 New York Times best-selling sequel to Relic, by Douglas Preston and Lincoln Child. The legacy of the blood-maddened Mbwun lives on in "Reliquary", but the focus is shifted from the original museum setting to the tunnels beneath the streets of New York City.-Plot summary:The...

, after which he retires to Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, using the pseudonym of Campbell Dirk to write police procedural

Police procedural

The police procedural is a subgenre of detective fiction which attempts to convincingly depict the activities of a police force as they investigate crimes. While traditional detective novels usually concentrate on a single crime, police procedurals frequently depict investigations into several...

s.

D'Agosta comes out of retirement, leaving his cheating wife and college aged son (Vinnie Jr.) in Canada, in Brimstone

Brimstone (book)

Brimstone is a novel written by Douglas Preston and Lincoln Child, published in 2004. It is the first novel in the trilogy that includes Dance of Death and The Book of the Dead .-Plot summary:FBI Special Agent Aloysius X.L...

and returns to the force. He is now sergeant. He works with Laura Hayward, whom he was romantically involved with, and again with Agent Pendergast. The two investigate various murders with satanic overtones; they also become involved with the search for a priceless violin.

In Dance of Death

Dance of Death (novel)

Dance of Death is a 2005 novel by Douglas Preston and Lincoln Child. It is the second book in a trilogy: the first book is Brimstone, released in 2004, and the last book is The Book of the Dead, released in 2006.-Synopsis:...

, D'Agosta risks his job to conceal the fugitive Pendergast's whereabouts and helps him defeat his murderous brother, Diogenes. This takes them back to D'Agosta's old workplace, the museum.

He then helps break Pendergast out of prison and helps to catch Diogenes in The Book of the Dead

The Book of the Dead (novel)

The Book of the Dead is a novel by Douglas Preston and Lincoln Child. It is the third and final installment to the trilogy concentrating on FBI Special Agent Aloysius X. L. Pendergast and his relationship with Lieutenant Vincent D'Agosta in their pursuit to stop Pendergast's brother,...

.

In the film The Relic

The Relic (film)

The Relic is a 1997 science fiction/horror film directed by Peter Hyams and based on the best-selling novel Relic by Douglas Preston and Lincoln Child. The film stars Penelope Ann Miller, Tom Sizemore and Linda Hunt. The original music score was composed by John Debney...

, Lieutenant D'Agosta is played by Tom Sizemore

Tom Sizemore

Thomas Edward "Tom" Sizemore, Jr. is an American film and television actor and producer. He is known for his roles in films such as Saving Private Ryan, Strange Days, Pearl Harbor, Heat and Black Hawk Down....

.