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.
Channel 5 will broadcast the series under the name The Vanishings from 6 February 2025.

Cast

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
Episodes

Production

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.