Sian Diamond

Sian Diamond (née Edwards) is a hit in her role as science teacher and deputy head at Waterloo Road. At first she was devastated not to be working under Karen Fisher's leadership. Behind the science goggles is an intelligent, sparky and sexy woman, capable of making science appealing to the masses. She worked with Michael Byrne, her boss, at his previous school where the two were once romantically linked.

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