The Chicago Film Critics Association Award for Best Actor is an annual award given by the Chicago Film Critics Association.

Dead Ringers is a 1988 psychological thriller film starring Jeremy Irons in a dual role as identical twin gynecologists. David Cronenberg directed and co-wrote the screenplay with Norman Snider. Their script was based on the lives of Stewart and Cyril Marcus and on the novel Twins by Bari Wood and Jack Geasland, a "highly fictionalized" version of the Marcuses' story.