Emma Jaye Jacobs (born 27 May 1982), known professionally as Jaye Jacobs, is an English actress. She played Donna Jackson in the BBC medical drama series, "Holby City", from 2004 to 2011, and 2017 onwards; Deputy headteacher and science teacher Sian Diamond, in the BBC school-based drama series, "Waterloo Road", from 2011 to 2013; and Amber in the CBBC children's sitcom, "Millie Inbetween", from 2014 to 2018.