Warning: spoilers! Doctor Lily Chao's heart-breaking Casualty exit in pictures.

We’ve sad news – Doctor Lily Chao is clicking her heels and departing Holby. Lily’s exit marks the end of four fantastic years on the long-running medical drama for talented Crystal Yu, who played her. Before Lily leaves paramedic Iain Dean (Michael Stevenson) pulls out all the stops, but it looks like it’s a critical case of ‘too little, too late.’ What’s on TV‘s diagnosis: There will be tears (mostly ours)…

Here we reveal exactly what’s in store for Lily and the rest of the gang in Casualty…