Mia Farrow, Eddie Izzard and Robert Webb are among the stars who have paid tribute to Sir Ian Holm after his agent confirmed his death.The 88-year-old died after suffering a short illness linked to Parkinson’s Disease.A statement from Holm’s agent read: “He died peacefully in hospital, with his family and carer. "He was a genius of stage and screen, winning multiple awards and loved by directors, audiences and his colleagues alike.