Who played Dr. Sam Ryan in the British crime drama TV series "Silent Witness" for eight series?

Amanda Burton (born 10 October 1956) is a Northern Irish actress. Her notable credits include Heather Haversham in the Channel 4 soap opera "Brookside" (1982–1986), Beth Glover in the ITV drama series "Peak Practice" (1993–1995), Sam Ryan in the BBC crime drama series "Silent Witness" (1996–2004), Clare Blake in the ITV crime drama series "The Commander" (2003–2008), Karen Fisher in the BBC school-based drama series "Waterloo Road" (2010–2011), and Katherine Maguire in the ITV detective series "Marcella" (2020).

"Silent Witness" is a British crime drama television series produced by the BBC, which focuses on a team of forensic pathology experts and their investigations into various crimes. First broadcast in 1996, the series was created by Nigel McCrery, a former murder squad detective based in Nottingham. Twenty-four series of "Silent Witness" have been broadcast since 1996. Amanda Burton starred as primary character Dr. Sam Ryan before leaving the show during the eighth series.