Tom Gallop played the role of Tom Cronin in a film series based on a character created by what author?
Tom Gallop:  He is best known for his performance as Tom Cronin in Bourne. Bourne (film series): The Bourne films are a series of action spy thriller films based on the character Jason Bourne (Matt Damon), a CIA assassin suffering from extreme memory loss who must figure out who he is, created by author Robert Ludlum.
Robert Ludlum