Sacha Alexander (born 8 May 1972) is a British actor, scriptwriter and producer.
Alexander most recently starred in Freddi with Rob Brydon. Freddi is a pilot comedy drama commissioned by BBC Four in 2008 about Freddi, a wealthy, bored Russian oligarch living in London. Alexander devised the show and wrote it with scriptwriter Mark Staheli, and produced with Brydon's production company Arbie. Freddi was scheduled for TV broadcast in 2009.