Sunetra Sarker has shocked fans by leaving Casualty with no warning.
The actress - who has played Dr Zoe Hanna since 2007 - hung up her stethoscope in Saturday night's instalment, with her alter ego leaving for a new job abroad.
Sunetra tweeted a thank you to fans, saying it had been "a privilege and a pleasure".
The actress later took part in a Q and A with fans to mark the end of her run on the BBC medical drama.
When one asked if she would ever return, she replied: "Not for the foreseeable future. I've only just left."
She was also quizzed about what she would miss most and replied: "The laughter on and off set. The make up chair gossip and the corridor banter. Oh and Derek Thompson;)x."
The BBC has released a montage of some of Sunetra's best bits to mark her exit.