Michael Douglas as Liberace

Matt Damon as Scott Thorson

Dan Aykroyd as Seymour Heller

Scott Bakula as Bob Black

Rob Lowe as Dr. Jack Startz

Tom Papa as Ray Arnett

Paul Reiser as Mr. Felder

Bruce Ramsay as Carlucci

Nicky Katt as Mr. Y

Cheyenne Jackson as Billy Leatherwood

Mike O'Malley as Tracy Schnelker

David Koechner as Adoption Attorney

Boyd Holbrook as Cary James

Debbie Reynolds as Frances

Eric Zuckerman as Lou

Eddie Jemison as Assistant Director

Randy Lowell as Director

Tom Roach as Stunt Actor

Shamus Cooley as Camera Assistant

John Smutny as Sound Mixer

Jane Morris as Rose Carracappa

Garrett M. Brown as Joe Carracappa

Pat Asanti as George Liberace

Casey Kramer as Dora Liberace

James Kulick as Assistant Stage Manager

Paul Witten as Make-up Artist

Deborah Lacey as Gladys

Susan Caroll Todd as Sue

Austin Stowell as Backstage Flirt

Francisco San Martin as Backstage Flirt

Anthony Crivello as Stagehand

Kiff VandenHeuvel as Scott's Half-Brother, Wayne

Nikea Gamby-Turner as Dorothy

Charlotte Crossley as June

Josh Meyers as Liberace's Attorney

Harvey J. Alperin as Joel Strote

Jerry Clarke as Dr. Ronald Daniels

Lisa Frantz as Anchorwoman

Shaun T. Benjamin as Health Department Spokesman

John Philip Kavcak as Priest at Funeral

Kelly Allen as Young American Dancer (uncredited)

Gregg Atwill as Funeral Mourner (uncredited)

Greg Baine as Patron (uncredited)

Brian Blu as Guy Outside Casino (uncredited)

Paul Borst as Party Guest (uncredited)

Barbara Brownell as Angie Liberace (uncredited)

Lee Christian as Sex Club Patron (uncredited)

Kass Connors as Kazarian (uncredited)

Jacquelyn Dowsett as Showgirl (uncredited)

Timothy Skyler Dunigan as Concert Fan (uncredited)

Fielding Edlow as Deposition Reporter (uncredited)

Corey Eid as French Guy #2 (uncredited)

Krystal Ellsworth as Impossible Dream Dancer (uncredited)

Kelli Erdmann as Young American Dancer (uncredited)

Amber Lee Ettinger as Hair Stylist (uncredited)

Derek Ferguson as Young American (uncredited)

Joe Filippone as Adult Bookstore Patron (uncredited)

Brandon Henschel as Dancer (uncredited)

Kara Hess as Young American Dancer (uncredited)

Lenny Jacobson as Stage Manager (uncredited)

Richard Allan Jones as Mourner (uncredited)

Adam J. Kassel as Valet (uncredited)

Dominique Kelley as Impossible Dream Dancer (uncredited)

David Dustin Kenyon as Cameraman (uncredited)

Kirk Krogstad as Theatre Stage Hand (uncredited)

Kristin Lindquist as Billy (uncredited)

Rachael Markarian as Showgirl (uncredited)

Hugo Pierre Martin as Patron (uncredited)

Paul Montez McDade as Sex Club Worker (uncredited)

KC Monnie as Young American Dancer (uncredited)

Max Napolitano as Bar Patron (uncredited)

Gregory Niebel as Tailor (uncredited)

Cassidy Noblett as Show Boy (uncredited)

Ryan Novak as Dancer (uncredited)

Meredith Ostrowsky as Young American (uncredited)

Lance Patrick as Sex Couple #1 (uncredited)

Brittany Perry-Russell as Liberace Showgirl (uncredited)

Ferly Prado as Dancer (uncredited)

Mike Jerome Putnam as On-Air News Reporter (uncredited)

Thure Riefenstein as Maitre d' (uncredited)

Stephanie Maura Sanchez as Second Anchorwoman (uncredited)

Jimmy Scanlon as News Reporter (uncredited)

Roby Schinasi as French Guy #1 (uncredited)

Nellie Sciutto as Reporter (uncredited)

Franklin J. Sterns as Bookstore Patron (uncredited)

C.J. Stussi as Startz Surgeon (uncredited)

Becca Sweitzer as Showgirl (uncredited)

Trace Taylor as Stagehand (uncredited)

Anna Wendt as Stagehand (uncredited)

Ryken Zane as Print Reporter (uncredited)

Judy Bruno Bennett as Nightclub Patron (uncredited)

Cal Rein as Bookstore Guy (uncredited)

Brian Neil Hoff as Reporter (uncredited)

Nick Lanzisera as Young American Dancer (uncredited)

Charles Moniz as Mourner (uncredited)

Ayesha Orange as Showgirl (uncredited)

Jason Williams as Young American Dancer (uncredited)

Johnny Carson as Self (archive footage) (uncredited)

Peggy King as Self (archive footage) (uncredited)