Brendon Coyle, known for his work in Downton Abbey, is set to star as Bobby Ryan in a new five-part RTÉ drama titled The Murder of Mr. Moonlight, according to production announcements. The series explores the 2011 disappearance and subsequent murder of the Tipperary DJ, a case that shocked the local community and led to a high-profile trial. According to producers, the upcoming project has also been acquired by the BBC for broadcast on BBC One and BBC iPlayer, with an expected air date in 2027.
Cast Details and Character Roles in The Murder of Mr. Moonlight
The upcoming drama features a prominent ensemble cast portraying the key figures involved in the real-life case. Owen McDonnell, recognized for his roles in Killing Eve and Bad Sisters, will play Patrick Quirke, while Sinéad Keenan of Unforgotten is cast as Mary Lowry, according to project details. Hazel Doupe, with credits including Say Nothing and Kathleen Is Here, takes on the role of Ryan’s daughter, Michelle. Meanwhile, Carolyn Bracken will portray Quirke’s wife, Imelda.
Additional cast members announced for the production include Ian Lloyd Anderson, Danny Power, Helena Browne, Muiris Crowley, Aidan O’Hare, Emmet Byrne, and Pom Boyd. The series is written by Malcolm Campbell, Meadhbh McHugh, and Paul Howard, and directed by Dathaí Keane and Rachel Carey.
Did you know? The Murder of Mr. Moonlight is based on journalist Catherine Fegan’s book of the same name, which draws on extensive research and interviews regarding the 2011 disappearance and the 2019 trial.
Background of the Investigation and 2019 Conviction
Bobby Ryan vanished in June 2011, triggering widespread concern and searches across Co Tipperary. Nearly two years after he went missing, his body was discovered inside an underground tank on a farm, according to court records. The investigation culminated in a 15-week trial in 2019, where Patrick Quirke was convicted of murder and subsequently sentenced to life imprisonment.
Producers Kim Varvell and Tommy Bulfin stated that the television adaptation aims to shift focus back toward Ryan and his family, noting that media attention had previously centered heavily on Quirke and Mary Lowry. “This drama intends to give a voice back to Bobby and his family,” the producers said, adding a hope that the series honors his memory as a father, grandfather, and community member rather than solely as a victim.
Creative Vision and Production Approach
Screenwriter Malcolm Campbell explained that he was drawn to the project because of the human element and the profound impact the events had on those involved. According to Campbell, the production team approached the sensitive real-life material with rigorous research, care, and attention to the underlying personal relationships and tensions.

The series is a collaborative production by Conker Pictures and Samson Films for RTÉ, developed in association with the BBC, Screen Ireland, and Coimisiún na Meán. Filming and production schedules point toward a 2027 release across Irish and British public service broadcasting networks.
Frequently Asked Questions
When will The Murder of Mr. Moonlight air?
The five-part drama is scheduled to air on RTÉ in 2027 and will also be broadcast on BBC One and streamed on BBC iPlayer.
Who is starring in the RTÉ drama?
The series stars Brendon Coyle as Bobby Ryan, Owen McDonnell as Patrick Quirke, and Sinéad Keenan as Mary Lowry, alongside Hazel Doupe and Carolyn Bracken.
What is the series based on?
The drama is based on journalist Catherine Fegan’s book The Murder of Mr. Moonlight, alongside independent research and interviews.
Who directed and wrote the series?
The scripts were written by Malcolm Campbell, Meadhbh McHugh, and Paul Howard, with directing duties handled by Dathaí Keane and Rachel Carey.
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