Patrick Dempsey accused of ‘terrorising’ Grey’s Anatomy set and leaving cast with ‘PTSD’ before exit

Patrick Dempsey starred in Grey’s for 10 years (Pictures: Getty/Rex)Grey’s Anatomy star Patrick Dempsey has been accused of ‘terrorising’ people on set, before his character was written out of the show.The actor featured as Dr Derek Shephard, but a new book about the series explained exactly why the character was killed off in an infamous car crash.Dempsey, 55, was at the core of the US medical drama for 11 seasons before his alter-ego of Dr ‘McDreamy’ Shephar