William O'Leary is an American actor, best known for Miss Congeniality 2: Armed and Fabulous, Terminator 3: Rise of the Machines, Hot Shots! and Bull Durham. Other film credits include In My Pocket, Soccer Mom, Moola, Mad City, A Time to Revenge, Project: ALF, Candyman: Farewell to the Flesh, Flight of Black Angel, Lost Angels and Walker.

Television credits include Xaviax/Walter Connors on CW’s Kamen Rider: Dragon Knight, Sid Paulson on FOX’s 24, Phil Kavanagh on ABC’s Karen Sisco, Stewart Otis on CBS’ CSI: Miami, Marty Taylor on ABC’s Home Improvement and Ben on NBC’s Dear John.

Theatre credits include his Broadway debut as Art in Precious Sons (Longacre Theatre); Off-Broadway, as Mesron in The Dispute (N.Y. Workshop Theatre); and regionally, as Ariel in The Tempest (Hartford Stage); and Betty/Gerry in Cloud 9 and Charlie Then in Da (Contemporary Theatre).