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Kat and Alfie: Redwater saw a familiar face in Thursday night's episode – but you may have missed it.
The EastEnders spin-off featured Angeline Ball as Eileen Harrington, who returned to the village after 20 years in the US for her father Lance's funeral.
Some fans recognised her... and that's because actress Ball has appeared on EastEnders before.
Do you remember Maggie Townsend?
Related: Kat and Alfie: Redwater episode two review – Are the Moons becoming intruders in their own show?
Back in May 2008, Ball played Maggie, Bradley Branning's boss. She flirted with Bradley (who had, at this point, separated from Stacey Slater temporarily after Stacey's affair with Max) and invited him to dinner.
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Bradley feigned illness, and Maggie ended up firing him.
So yes, Eileen apparently has a doppelgänger in the EastEnders universe!
Ball previously talked about the character of Eileen and why she chose to leave Redwater so long ago.
"She left because of her grief," she said. "I guess living there was a daily reminder of how she lost a child to drowning. Living next to the same ocean that claimed her daughter was too much for her to bear.
"Ultimately, she needed to get away to start a new life and escape painful memories. Possibly it was all slightly claustrophobic in Redwater.
"She has a very strong mother and sister, so I think it was her strive for independence as well."
Redwater continues next Thursday (June 1) at 8pm on BBC One.
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