Jim Delbridge (third from left) on the set of German crime drama "Watzmann Ermittelt". (39230307)

A BROADCASTER and musician from the Channel Islands is set to appear as an “ageing rock star” in a prime-time German television crime drama watched by millions.

Jim Delbridge, who has worked at BBC Guernsey and Island FM, will make his television debut tomorrow playing the role.

The episode of Watzmann Ermittelt, or Mountain Murders, will air on Germany’s main channel, Das Erste, at 6.50pm.

The series which has drawn millions of viewers since its launch in 2019, centres on two contrasting detectives – a traditional Bavarian officer and his inner-city partner – as they learn to work together despite their different approaches to policing.

In the upcoming episode, Mr Delbridge portrays Jason Gribb, an ageing rock star who surprises the senior detective’s wife at her birthday party. During his scene, he performs his own composition Bring It On from his album The Navigator.

The opportunity came through his brother John, a German TV director, who reached out in 2022 when the production needed an urgent replacement.

“They needed someone to play an ageing rock star who can sing, and they had to be cheap, so he thought of me,” Mr Delbridge joked. 

The role represents a return to German media for Mr Delbridge, who toured the country as a musician in the 1980s.

His previous work included composing the theme music for the hospital drama St Angela and creating over 100 songs for a children’s English-language education programme in Germany.

Commenting on his latest German appearance, he said: “I jumped on a plane and spent a long weekend on set. It was a real eye-opener.”