The new run of six episodes follows two series broadcast in 2015 and 2016. More names will be announced in due course.
Tom Davis says: "I'm over the moon to be jumping in my Capri gear and heading back to Successville, it's time to serve up a justice burger with a side order of fun with five brand new sidekicks."
Damian Kavanagh, Controller, BBC Three says: “How exciting! I’m sure fans of this hit BBC Three show will be thrilled to hear that DI Sleet is heading back to Successville with a new cohort of sidekicks to investigate more crimes.”
DI Sleet and his sidekicks will be joined by a resident cast of top comedy names including Kerry Howard, Luke Kempner, Colin Hoult and Cariad Lloyd.