Threarah was the Chief Rabbit of Sandleford Warren. His name in Lapine means "Rowan Tree", however he preferred to be called "The Rowan Tree." He was the uncle of Silver. He ignored Fiver's warning to evacuate the warren, and consequently, he is among the many rabbits of the warren who perished. In the film, the Threarah was gray furred, old (like in the novel), and rather obese. In the film he wasn't given a name- only credited "The Chief Rabbit". He was played by Ralph Richardson.