Biography: Ron Rifkin received a 1998 Tony Award for Best Supporting Actor for the Broadway revival of "Cabaret." His recent theatre credits include David Hirson's "Wrong Mountain," Arthur Miller's "Broken Glass," Turgenev's "A Month in the Country" and Neil Simon's "Proposals." Rifkin originated the role of Isaac Geldhart in the Jon Robin Baitz play "Substance of Fire," in which he won the Obie, Drama Desk, Lucille Lortel and Drama-Logue awards for Best Actor. The following year he performed in Baitz's "Three Hotels," for which he received a second Lucille Lortel award and Drama Desk nomination.

Rifkin's film credits include "Boiler Room," "Keeping the Faith," "The Negotiator," "L.A. Confidential," the film adaptation of "Substance of Fire," Woody Allen's "Husbands and Wives" and "Manhattan Murder Mystery," "Last Summer in the Hamptons," "Wolf," "JFK," "The Sting II," "The Big Fix," "The Sunshine Boys" and "Silent Running."

On television he has appeared in numerous made-for-television movies and miniseries, including "Flowers for Algernon," "Norma Jean and Marilyn," "The Sunset Gang," "Concealed Enemies," "Buying a Landslide," "Evergreen," "The Winds of War" and "Dress Gray." He starred in the series "One Day at a Time" and "The Trials of Rosie O'Neill," and guest starred on ER, Law & Order, Falcon Crest, Soap, Hill Street Blues and The Outer Limits -- in which he received a Cable ACE nomination.

Rifkin was recently seen in the television film "Deliberate Intent," opposite Timothy Hutton, and in "Light Up the Sky" at the Williamstown Theatre Festival. He also appeared in several episodes of "Nero Wolfe," with Timothy Hutton directing. His upcoming film projects include starring roles in "Dragonfly," with Kevin Costner, "The Majestic," with Jim Carrey, and "Sum of All Fears," with Ben Affleck and Morgan Freeman.

Television Credits:
Alias as Arvin Sloane
A Nero Wolfe Mystery as Attorney Perry Helmar (2 episodes in 2001)
The Outer Limits as Dr. Martin Nodell in episode: "Double Helix" (episode # 3.12) 3/28/1997
Leaving L.A. as Dr. Neil Bernstein (1997)
E.R. as Dr. Carl Vucelich (1995-1996)
Room for Two as Jack Weissman in episode: "Moving On" (original airdate: 06/22/1993)
Law & Order as Alex Dracos in episode: "Self Defense" (original airdate: 11/11/1992)
Law & Order as Phillip Nevins in episode: "Prescription for Death" (original airdate: 09/13/1990)
The Trials Of Rosie O'Neill as Ben Meyer (1990)
Hill Street Blues as Monty DiMair in episode: "Ratman and Bobbin" (original airdate: 01/12/1984)
The Winds Of War (miniseries) as Mark Hartley (1983)
Falcon Crest as Dr. Lantry (1983-1984)
One Day At A Time as Nick Hantris (1980-1981)
Husbands, Wives and Lovers as Ron Willis (1978)
Alice as Eric in episode: "Sweet Charity" (original airdate: 12/17/1978)
The Rockford Files as Warren Weeks in episode: "The Trouble With Warren" (original airdate: 12/24/1976)
Kojak as Rick Levene in episode: "No Immunity For Murder" (original airdate: 11/23/1975)
The Rockford Files as Tom Robertson in episode: "Roundabout" (original airdate: 030/7/1975)
When Things Were Rotten as Prince John (1975)
The Mary Tyler Moore Show as Ed Schroeder in episode: "A New Sue Ann " (original airdate: 10/26/1974)
The Bob Newhart Show as Jeff Boggs in episode: "Mind Your Own Business" (original airdate: 02/02/1974)
Adam's Rib as Asst. D.A. Roy Mendelsohn (1973)
Gidget in episode: "Love and the Single Gidget" (original airdate: 03/03/1966)