Actor Nicholas Bailey has made a comeback to EastEnders with Dr Anthony Trueman returning to Walford following Patrick's stroke.
Anthony, who hasn't been seen on screen since 2005, featured in scenes just broadcast on BBC1, although a spokesperson for the show told RadioTimes.com that it will be just a one-off reappearance.
The Square's former doctor-in-residence visited Patrick (Rudolph Walker) in hospital, although found himself unable to commit to caring for his father. In the episode's closing minutes, Anthony handed Denise (Diane Parish) a cheque for £2000 before leaving town.
Prior to his hasty exit, he explained to Ian Beale (Adam Woodyatt) that Patrick didn't feel like a true father because he'd walked out when Anthony was just a baby. Anthony also revealed that there was strain in his marriage back in Glasgow due to problems with his son Ewan.
But despite Ian saying that Anthony would hate himself if he chose not to take Patrick to Scotland, the medic told Denise that he couldn't handle the situation with his dad, leaving her worried about Patrick's long-term care.
Earlier in the episode, viewers also saw Anthony sharing a scene with former love Kat (Jessie Wallace), although plans for them to have "a proper catch-up" seem destined not to happen.
Since originally leaving EastEnders, actor Nicholas Bailey has performed in the theatre in productions such as Breakfast with Mugabe and King Lear. In 2012, he also played the role of Amy Franks's duplicitous boyfriend Carl in Radio 4's The Archers.