The 62-year-old actor, who plays former burglar Michael Rodwell, is leaving to star in Alan Bleasdale’s ‘Down The Dock Road’ at Liverpool’s Royal Court Theatre in the new year.
But Les’ exit will only be temporary, as he’s set to return to Weatherfield later this year after signing a new contract that will see him stay on the soap throughout 2016.
"It's a dream come true for me, but I will really be looking forward to get back to rekindle my soap role," Les told The Sun.
"I still pinch myself that I am in the show."
During her time away, Brooke will also be treading the boards in a Manchester theatre production.
David Neilson - who plays Roy Cropper - will also temporarily leave the soap to pursue other projects.
And Alison King, who plays Carla Connor, is set to depart for an unspecified length of time after nearly a decade playing the factory boss.
Earlier this year it was revealed that Ryan Thomas, who plays builder Jason Grimshaw, was quitting the soap for good, while ‘Corrie’ stalwart Eileen Derbyshire, who plays Emily Bishop, is also set to take time off.
The temporary cast changes come ahead of new boss Kate Oates taking the reins in the new year.
The current ‘Emmerdale’ boss is said to be determined to rescue the soap by bringing back the jokes and 'leaving the dark stuff to rival soap ‘EastEnders '.