By James Hibberd
Updated February 26, 2014 at 06:01 PM EST

Comedians Keegan-Michael Key and Jordan Peele have joined the cast of FX’s Fargo.

The stars of Comedy Central’s sketch comedy show Key & Peele will play FBI partners Webb Pepper (Peele) and Bill Budge (Key), who, after a violent run-in with hit-man Lorne Malvo (Billy Bob Thornton), become obsessed with finding him again.

Fargo is a 10-episode limited series inspired by the 1996 Coen brothers feature film except it has a new true-crime tale. Stars include Martin Freeman (Sherlock), Colin Hanks (Dexter) and Bob Odenkirk (Breaking Bad). Key and Peele will guest star in an arc that will span the final four episodes. Fargo debuts April 15 on FX.