When Mooney departs the island, he will be replaced by a new character called Neville Parker (Ralf Little) who is transferred from Manchester.
The BBC revealed how he will be heading to the island of Saint Marie to investigate the suspicious death of a woman.
Speaking about joining the show, he said: “It took less than 0.005 seconds to say yes to playing the new DI. How could I not?
“Ardal has been wonderful in the last few series and to follow in his footsteps in a place as idyllic as Guadeloupe was a great honour and a dream come true.
“It is a joy to play Neville and I can’t wait for viewers to see him in Paradise this series.”
Death in Paradise continues on Thursday evenings on ITV.
