The Vanishing Triangle

The Vanishing Triangle is a six-part television series created by Ivan Kavanagh. It is a dramatisation of true stories from Ireland's Vanishing Triangle. Distributed by Eccho Rights, it premiered on Sundance Now in the United States on 26 October 2023, and aired on Virgin Media One in Ireland on 25 March 2024 and Acorn TV in the United Kingdom on 29 April.

It premiered on Australian television on Thursday 7 March 2024, on SBS.

Main

 * India Mullen as Lisa Wallace, investigative journalist
 * Allen Leech as David Burkely, detective
 * Aaron Monaghan as Gareth Brennan
 * Laoise Sweeney as Susan Reynolds
 * Derbhle Crotty as Barbara Adams
 * Philip O'Sullivan as DCS Gill
 * Gráinne Good as Amy Reynolds
 * Brian Moore as Mark Bulger
 * Jana Mohieden as Mandy Clarke
 * Adam John Richardson as Tommy Stephens
 * Stuart Dunne as Chris Wallace
 * Stephen Hogan as Ger Gough

Recurring

 * Maura Foley as Janice Wallace
 * Jason Daly as Jimmy
 * Kiera Crawford as Rachel Burkely
 * Fionnuala Murphy as Francis Reynolds
 * Sarah Carroll as Mary Burkely
 * Peter Corboy as Liam Benson

Development
The Vanishing Triangle was originally developed by Park Films and Screen Ireland. 87 Films and Paper Planes Productions boarded the project as it was commissioned by Virgin Media One and SundanceNow. The series is created by Ivan Kavanagh, and co-written with Sally Tatchell and Rachel Anthony. Executive producers include actor Allen Leech, AnneMarie Naughton and Ana Habajec of Park Films, Patrick Irwin of 87 Films, Alon Aranya of Paper Plane Productions, and Adam Barth and Lucy Robert of Eccho Rights.

Casting
In September 2022, it was announced Allen Leech and India Mullen would lead the series. Maura Foley and Kiera Crawford also joined the cast.

Filming
Filming was reported in Bray, County Wicklow in October 2022.