The actor is reprising his role of Charlie Slater for an episode that sees Charlie visit his daughter Kat (Jessie Wallace).
The character originally appeared between September 2000 and January 2011 when Charlie left the Square following the assumed death of his grandson Tommy.
Charlie left Tommy on his own when he was supposed to be looking after him causing Kat to blame him for what happened.
Charlie returned to the soap briefly in April 2011 when Tommy was discovered to be alive, having been taken by Ronnie Mitchell (Samantha Womack). The episode saw Kat and Charlie reconcile their differences.
The Daily Star Sunday reports that Derek has already filmed his latest comeback scenes.
There’s a special Kat storyline happening at Christmas and it wouldn’t have been the same if Charlie wasn’t a big part of it all. – EastEnders Source
EastEnders, Monday, Tuesday, Thursday and Friday on BBC One