Anderson fought off competition from Kristin Scott Thomas and Billie Piper to take home the Natasha Richardson Award for her performance in the Young Vic's 'A Streetcar Named Desire', while 'Thor' star Hiddleston picked up the Best Actor award for 'Coriolanus at the Donmar Warehouse', reported The Guardian.
Director Jeremy Herrin was named the winner of the Milton Shulman Award for his productions of 'Wolf Hall' and 'Bring Up the Bodies', while Best Play went to 'The James Plays', Skylight won the prize for Revival of the Year and The Scottsboro Boys won Best Musical.
The ceremony at the London Palladium was a star-studded event - David and Victoria Beckham, Naomi Campbell, Benedict Cumberbatch, Ian MCKellen and Dame Helen Mirren were in attendance.