Soapland’s most famous matriarch turned up on Ronnie’s doorstep just before the iconic "duff duff" noise kicked in, stunning Samantha Womack’s character.
Obviously, her arrival delighted fans on Twitter...
Peggy’s arrival marked the beginning of Barbara’s final stint on the show, and while it’s obviously great to see her back in the Square, viewers will need the tissues at the ready in the coming weeks.
When the former pub landlady attends a doctor's appointment to discuss her cancer, she’s left stunned when she discovers that her health has worsened, and makes a life-changing decision.
Peggy’s not the only Mitchell arriving back in Walford, and in the coming weeks, Grant and Sam Mitchell will also be back.
Actress Danniella Westbrook also began filming last week, and teased her comeback by posting snaps of the set on Instagram.
Catch up on all the latest ‘EastEnders’ news and spoilers here.