William O'Leary

 played Sid Paulson during Season 7 of 24.

Selected filmography

 * Soccer Mom (2008)
 * Miss Congeniality 2: Armed & Fabulous (2005)
 * Terminator 3: Rise of the Machines (2003)
 * Mad City (1997)
 * Hot Shots! (1993)
 * Bull Durham (1988)

Television appearances

 * "24" (2009)
 * "Without a Trace" (2005)
 * "The West Wing" (2005)
 * "CSI: Miami" (2002, 2003)
 * "Home Improvement" (1994-1999)
 * "Murder, She Wrote" (1995, 1996)
 * "Miami Vice" (1988)
 * "Crime Story" (1987)