Long Bright River Cast & Characters

Long Bright River is a Peacock Crime / Mystery series. RecapHub tracks 5 credited series regulars across 1 season and 8 episodes, led by Amanda Seyfried as Michaela "Mickey" Fitzpatrick, Nicholas Pinnock as Truman Dawes, Ashleigh Cummings as Kacey Fitzpatrick, Callum Vinson as Thomas Fitzpatrick.

A Philadelphia police officer patrols a neighborhood hit hard by the opioid crisis. When a series of murders begins, she realizes her personal history — and the disappearance of her addicted sister — may be connected to the case.

Long Bright River first aired on Mar 13, 2025. Cast credits below are aggregated across all 1 season.

3 guest performers have appeared in Long Bright River, and 1 of them return in more than one episode. The most frequently returning players include Parch Darragh as Sergeant Kevin Ahearn.

How to use this page: this is the show-level cast index — it aggregates every season. For season-specific credits, see the individual season cast pages: Season 1.

In-depth guides to the main characters of Long Bright River — backstory, season-by-season arc, and key relationships.

• Kacey Fitzpatrick
• Truman Dawes
• Gee O'Brien
• Thomas Fitzpatrick
• Michaela "Mickey" Fitzpatrick
• Davis Danjarat
• Kevin Ahearn

These performers appear in more than one episode of Long Bright River. Episode counts cover every season RecapHub currently has episode data for.

• Sergeant Kevin Ahearn — Parch Darragh · 8 episodes · Season 1

Each season below links to its episode guide and its own season cast page. "New to the credits" lists performers who were not credited in any earlier season covered here.

• Season 1 (2025) — 8 episodes, 5 credited regulars: Amanda Seyfried as Michaela "Mickey" Fitzpatrick, Nicholas Pinnock as Truman Dawes, Ashleigh Cummings as Kacey Fitzpatrick, Callum Vinson as Thomas Fitzpatrick, John Doman as Gee O'Brien. New to the credits this season: Amanda Seyfried as Michaela "Mickey" Fitzpatrick, Nicholas Pinnock as Truman Dawes, Ashleigh Cummings as Kacey Fitzpatrick, Callum Vinson as Thomas Fitzpatrick, John Doman as Gee O'Brien. Season 1 cast page. Season 1 episodes.

Relationships below come from RecapHub character entities and link to the matching character profiles.

• Davis Danjarat — ally: Sergeant Kevin Ahearn (Sergeant who assigned him the case)
• Gee O'Brien — family: Michaela Mickey Fitzpatrick (Family elder)
• Kacey Fitzpatrick — family: Michaela Mickey Fitzpatrick (Sister)
• Michaela "Mickey" Fitzpatrick — family: Kacey Fitzpatrick (Sister)
• Michaela "Mickey" Fitzpatrick — ally: Truman Dawes (Former patrol partner)
• Mrs. Mahon — ally: Michaela Mickey Fitzpatrick (Neighbour)
• Kevin Ahearn — ally: Detective Davis Danjarat (Detective he assigned to the murders)
• Thomas Fitzpatrick — family: Michaela Mickey Fitzpatrick (Legal guardian / mother)
• Truman Dawes — ally: Michaela Mickey Fitzpatrick (Former patrol partner)

Long Bright River has 8 character profiles with episode-level appearance data. The most-covered characters are listed first.

• Gee O'Brien — 8 episodes · Season 1
• Kacey Fitzpatrick — 8 episodes · Season 1
• Michaela "Mickey" Fitzpatrick — 8 episodes · Season 1
• Kevin Ahearn — 8 episodes · Season 1
• Thomas Fitzpatrick — 8 episodes · Season 1
• Truman Dawes — 8 episodes · Season 1
• Davis Danjarat — 6 episodes · Season 1
• Mrs. Mahon — 1 episode · Season 1