Brook Richard Williams was an English stage actor who also made numerous film and television appearances in small roles.
His father was the Welsh playwright and actor Emlyn Williams. His older brother Alan was a foreign correspondent and novelist.
Brook was born in London and attended Stowe School in Buckinghamshire. After national service in the RAF he appeared on stage in repertory theatre, in London's West End and abroad on tour.
His film appearances included: The Jokers Where Eagles Dare, Anne of the Thousand Days, Raid on Rommel, Villain, Equus, The Wild Geese and The Sea Wolves. He was a close friend, assistant and advisor to the actor Richard Burton who had known him since he was a child and he appeared in several films which Burton starred in. He died of cancer aged 67.