Cyril O'Reilly grew up in Claremont, California. At the age of ten Cyril's father was appointed Deputy Director for the Peace Corps, and moved his family to Somalia, West Africa. Upon his return to the US, Cyril was accepted into the American Academy of Dramatic Arts. After graduation, he studied with Stella Adler, co-founded the provocative theater group: The Frances Farmer Memorial Players, won several awards for the west coast premiere of Lanford Wilson "Balm in Gilead," and starred in the Sam Shepard play "A Lie of the Mind" opposite Holly Hunter and Amy Madigan at the Mark Taper Forum.