Hal & Harper Series Cast, Plot and Everything to Know

Plot

From Cooper Raiff comes HAL & HARPER, an 8-episode series about siblings Hal (Raiff) and Harper (Lili Reinhart), whose lifelong closeness is both their comfort and their curse. When their father (Mark Ruffalo) announces he’s having a baby with his girlfriend (Betty Gilpin), the two must confront their past and the codependent bond shaping their adult lives.

Comedy Drama

• 
  Lili Reinhart

  Forbidden Fruits, American Sweatshop

• C
  Cooper Raiff

  Cha Cha Real Smooth, See You When I See You

• 
  Mark Ruffalo

  Crime 101, Avengers: Endgame

• B
  Betty Gilpin

  The Hunt, The Tomorrow War

• A
  Alyah Chanelle Scott

• A
  Asher Alexander

• A
  Addison Timlin

  Stand Up Guys, The Feast of Seven Fishes

Who is making Hal & Harper (Series) – Crew List

A look at Hal & Harper (Series) behind-the-scenes crew and production team. The film's director Cooper Raiff last helmed Cha Cha Real Smooth.

Director

Cooper Raiff

Screenwriters

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Production – What we know about the Hal & Harper (Series)

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Movie Filming Timeline: Production Status Updates

Oct 2025

Completed

Changed Hal & Harper (Series) movie production status. The movie is ready for release.

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