Lenny Rush Joins Apple TV+ Hit ‘Slow Horses’ Season 6 Cast

Actor Lenny Rush riding a mobility scooter indoors near an arcade machine

Quick Read

  • Lenny Rush joins the cast of Slow Horses Season 6 as Reese Nesmith.
  • Reese is introduced as a young witness whose father is murdered by Frank Harkness.
  • Jackson Lamb and Roddy Ho locate Reese and place him into protective custody.
  • Rush previously won a BAFTA and is slated to play Dobby in HBO's upcoming Harry Potter series.
British actor Lenny Rush has officially joined the cast of Apple TV+’s critically acclaimed spy thriller series Slow Horses for its sixth season, taking on the role of Reese Nesmith. The casting brings a fresh dynamic to the MI5 satire, pairing the young actor directly with series lead Gary Oldman.

Introduction to Reese Nesmith in Season 6

As Decider reports, Season 6 introduces Reese Nesmith as a pivotal young witness who finds himself in urgent need of protection after his father is murdered by Frank Harkness, played by Hugo Weaving. In the season’s opening episodes, security footage captures Reese fleeing the crime scene on a scooter, setting off a high-stakes search by the Slough House team.

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By Episode 3, Jackson Lamb, portrayed by Gary Oldman, and Roddy Ho, played by Christopher Chung, locate Reese and place him into protective custody at a local arcade. The resulting interrogation scene showcases an immediate comedic clash, with Rush’s character exhibiting sharp wit and holding his ground against Lamb’s gruff interrogation style.

Lenny Rush's Rising Career Trajectory

At 17 years old, Lenny Rush brings an impressive and rapidly expanding resume to the Apple TV+ ensemble. He previously won a BAFTA Award for his standout performance in the comedy-drama series *Am I Being Unreasonable?*.

Beyond his work on *Slow Horses*, Rush’s television and film credits include roles in *A Christmas Carol*, *Doctor Who*, *Enola Holmes 2*, *Dodger*, and *Renegade Nell*. Industry announcements have also confirmed that Rush is slated to star as Dobby the house-elf in HBO’s upcoming television adaptation of the *Harry Potter* franchise, bridging notable British fantasy and spy television projects.

Broadcast Schedule and Expanded Ensemble

Season 6 of *Slow Horses* continues to roll out new episodes weekly on Wednesdays via Apple TV+. The expanded narrative also incorporates returning and new characters, including media mogul Damien Cantor, played by Harry Lloyd, conservative politician Peter Judd, portrayed by Samuel West, and opposing assassins played by Kyle Soller and MyAnna Buring.

With creator Will Smith and the production team steering the espionage drama, the addition of Rush’s character provides both an emotional anchor for the season’s central murder mystery and a fresh comedic foil for the veteran cast.

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