Rob Kazinsky has been spotted entering the EastEnders studios at Elstree, sparking speculation that he is making a comeback to the soap later this year.
The actor played the part of Sean Slater - son of Jean (Gillian Wright) and brother of Stacey (Lacey Turner) - between 2006 and 2009, making a brief return in 2019 for a storyline that saw Jean battle cancer.
In pictures published by the Daily Star, Kazinsky is seen arriving at the soap's studios wearing a black facemask and pulling along a suitcase.
"Rob is back after two years away," an EE source told the newspaper.
"Producers have done everything they can to keep it hush-hush. Only select people have been made aware what is happening."
Current storylines involving the Slaters see Jean believing that she has cancer again, while Stacey is in prison after being framed by Ruby (Louisa Lytton) for assault.