Shows Like Castle
If you loved Castle's Drama and Crime storytelling, these series deliver a similar experience — chosen for tone, narrative quality, and viewer satisfaction. Each includes where to stream it now.
★ Top Picks

Instinct
Dr. Dylan Reinhart, a gifted author, university professor and former CIA operative is lured back to his old life by tenacious top NYPD Detective Lizzie Needham. Though Dylan and Lizzie initially clash, when it comes to catching killers, they make an ideal team.

The Inspector Lynley Mysteries
DS Barbara Havers is assigned to work with the upper-crust DI Thomas Lynley to solve murders.

New York Undercover
New York Undercover is an American police drama The series stars Detective J.C. Williams and Detective Eddie Torres, two undercover detectives in New York City's Fourth Precinct who were assigned to investigate various crimes and gang-related cases.

Marcella
Marcella is shocked to the core of her being when her husband Jason leaves her unexpectedly, confessing he no longer loves her. Heartbroken, Marcella returns to the Met’s Murder Squad. Ten years ago Marcella gave up her fast-tracked police career to marry and devote her life to her family. With the abrupt end to her marriage and isolated from her 13 year old daughter and 10 year old son, Marcella throws herself into work to stop herself from falling apart.

The Alienist
New York, 1896. Police commissioner Theodore Roosevelt brings together criminal psychologist Dr. Laszlo Kreizler, newspaper illustrator John Moore and secretary Sara Howard to investigate several murders of male prostitutes.

Unforgettable
Former Syracuse, New York, police detective Carrie Wells has hyperthymesia, a rare medical condition that gives her the ability to visually remember everything. She reluctantly joins the New York City Police Department's Queens homicide unit after her former boyfriend and partner asks for help with solving a case. The move allows her to try to find out the one thing she has been unable to remember, which is what happened the day her sister was murdered.

Mike Hammer
Private detective Mike Hammer hunts down criminals on the mean streets of New York City.

Law & Order
In cases ripped from the headlines, police investigate serious and often deadly crimes, weighing the evidence and questioning the suspects until someone is taken into custody. The district attorney's office then builds a case to convict the perpetrator by proving the person guilty beyond a reasonable doubt. Working together, these expert teams navigate all sides of the complex criminal justice system to make New York a safer place.
More Shows Like Castle

Shades of Blue
Sexy New York detective and single mother Harlee Santos fell in with a tight-knit group of dirty cops, taking bribes and protection money that she uses to provide the best life for her honest, talented daughter. But when she's trapped by the FBI and forced to inform on her own "brothers," she'll have to walk the fine line between love, loyalty, honor and betrayal, and try to keep it together for her daughter's future.

Cross
Alex Cross is a brilliant but flawed homicide detective and full of contradictions. A doting father and family man, Cross is single-minded to the point of obsession when he hunts killers. He is desperate for love, but his wife’s murder has left him too damaged to receive it.

Kojak
A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New York City.

CSI: NY
Follow the investigations of a team of NYPD forensic scientists and police officers identified as "Crime Scene Investigators".

Ballard
Detective Renée Ballard plunges into a web of murder and corruption as she hunts a ruthless serial killer and uncovers a sinister police conspiracy that threatens everything she stands for. With her own demons nipping at her heels, Ballard must outwit both criminals and colleagues to bring long-overdue justice to the victims and their families.

Dexter
Dexter Morgan, a blood spatter pattern analyst for the Miami Metro Police also leads a secret life as a serial killer, hunting down criminals who have slipped through the cracks of justice.

Homicide: Life on the Street
An American police procedural chronicling the work of a fictional version of the Baltimore Police Department's Homicide Unit.

The Sinner
In a small New York town, a haunted detective hunts for answers about perplexing crimes while wrestling with his own demons.

Murder in a Small Town
Karl Alberg moves to a quiet coastal town to soothe a psyche that has been battered by big-city police work but finds himself needing to call upon all his skills to solve the murders that continue to wash up on his shore.

Lincoln Rhyme: Hunt for the Bone Collector
Former NYPD detective and forensic genius Lincoln Rhyme was at the top of his game until a serious accident at the hands of a notorious serial killer forced him out of the field. When Amelia Sachs, an intuitive young officer who has a gift for profiling, finds herself hot on the killer's trail, Rhyme finds a partner for this new game of cat and mouse.

Private Eyes
Ex-pro hockey player Matt Shade irrevocably changes his life when he teams up with fierce P.I. Angie Everett to form an unlikely investigative powerhouse.

Elementary
A modern-day drama about a crime-solving duo that cracks the NYPD's most impossible cases. Following his fall from grace in London and a stint in rehab, eccentric Sherlock escapes to Manhattan where his wealthy father forces him to live with his worst nightmare - a sober companion, Dr. Watson.
Why These Shows Are Similar
These recommendations share core qualities with Castle (2009): Drama and Crime themes, similar pacing, and comparable production quality. NoBadPicks uses TMDB collaborative filtering, genre matching, and AI analysis to surface series most likely to resonate with fans of Castle.
See full details for Castle (2009)