Blood Work is a 2002 American mystery thriller film starring and directed by Clint Eastwood, who also produced. It co-stars Jeff Daniels, Wanda De Jesús, and Anjelica Huston. It is based on the 1998 novel of the same name by Michael Connelly.

Jeffrey Warren Daniels is an American actor. He is known for his work on stage and screen playing diverse characters switching between comedy and drama. He is the recipient of several accolades, including two Primetime Emmy Awards, in addition to nominations for three Tony Awards, five Screen Actors Guild Awards, and five Golden Globe Awards.