Study Guide

Colonel Arbuthnot in Murder on the Orient Express

By Agatha Christie

Colonel Arbuthnot

Always quick to rush to his lady-friend Mary Debenham's defense, Colonel Arbuthnot is a rather stuffy Englishman who served in India and doesn't much like Americans. The pipe cleaner that was found in Ratchett's room belongs to him. He was the close friend of Mr. Armstrong, Daisy's father, also a military man.