Morse, the older sister of Oscar-winner Gary Oldman, has played Big Mo in the BBC1 soap on-and-off since 2000.
In a comic moment during the trailer (see below), the titular bright-red demon (played by Harbour) and his gang arrive at a London fish and chip shop called Codswallop — which supposedly couples as a secret base for the BPRD (Bureau for Paranormal Research and Defense). Morse (aka Big Mo) stands behind the counter, and gives Hellboy the once-over before announcing: “Oi, I need some ID, love.”
Hellboy then gestures to his very recognisable physical appearance, and quips: “Are you serious?”
And that’s not the last we see of her – later Morse is seen defending her chippy with a huge machine gun.
Suffice to say, EastEnders fans are over the moon about the appearance of iconic ‘Big Mo’…
“Until today I was completely against the idea of a #Hellboy reboot,” one fan posted on Twitter, “…but apparently Big Mo off #EastEnders is in it so I’m somewhat inclined to give it an inch.”