Adam Arkin

as Dr. Robinson

as James Parker / Ashbel Green / Andrew Hunter / Enoch Anderson / Timothy Dwight / Robert Morris (voice)(6 eps)

as (voice)(2 eps)

as Mark Getzler(1 ep)

as Self (voice)(3 eps)

as Darius

as Sam(3 eps)

as Mark Duncan(7 eps)

as Detective(1 ep)

as Self

as Grant(1 ep)

as Wallace Mahoney(4 eps)

as Nir Zir

as Broomhall

as Hamish Boker(1 ep)

as Hamish Broker(3 eps)

as Shep Tally(3 eps)

as Federal Investigator(3 eps)

as Mr. Baynor(1 ep)

as Adam Roth(1 ep)

as Josh

as Reader (voice)(3 eps)

as Michael Peck

as Husband

as Theo Tonin(3 eps)

as Divorce Lawyer

as Reece(1 ep)

as Ethan Zobelle(11 eps)

as Ted Earley(32 eps)

as Reader (voice)(7 eps)

as Dean Deeley

as John Smith

as Gabe Difranco

as Ed Mumsford

as Carl Brantley(2 eps)

as Scott Esposito / Steven Hirschbaum(1 ep)

as Max

as A.D.A. Douglas Kupfer(3 eps)

as Other Voices (voice)

as Other Voices (voice)

as Ed Gibb(10 eps)

as Dale 'The Whale' Biederbeck(1 ep)

as Don Partridge (uncredited)

as Walter Spencer(14 eps)

as Henry

as Henry(2 eps)

as Richard Frangello

as Vissarion Belinsky (voice)

as Sylvester

as Joe Marks

as Scott Kayle

as Stanley Keyworth(4 eps)

as Dr. Julius Adler(1 ep)

as Detective Fred Stapelli

as Kevin

as Bob Miller

as Steve Hersh

as Will Brennan

as Self

as Merriwether Lewis (voice)(2 eps)

as Paul Danko(1 ep)

as Brian Schnitzer

as Albert Ginsberg(1 ep)

as Self(9 eps)

as Self(1 ep)

as Self - Host(1 ep)

as Agent Gabriel Valentino

as Aaron Shutt(141 eps)

as Various (voice)

as (voice)(6 eps)

as Bookstore Manager

as Dick Gordon

as Tom(1 ep)

as Marshall Fisher(6 eps)

as Edward(1 ep)

as Attorney Robert Biel(2 eps)

as Eli

as Louis Colt

as David

as George Costas(1 ep)

as Art Berman

as Adam(10 eps)

as Jeff

as Candido Amado(6 eps)

as Harry Newcomb(1 ep)

as Mr. Dunfee

as Jim Eisenberg(22 eps)

as Jim Eisenberg(3 eps)

as Richard Kendall(2 eps)

as Phil Douglas(1 ep)

as Tony Parisio(1 ep)

as (segment "A Matter of Minutes")(1 ep)

as Joseph

as Doug Zageck(1 ep)

as Michael Dreyfuss(8 eps)

as Self(1 ep)

as Charlie

as Tony

as Henry Hudson

as Mark Baylor(6 eps)

as Joey(1 ep)

as Pvt. Billy Zylowski(3 eps)

as Alex Lambert(1 ep)

as Jonathan Stevens(1 ep)

as Rupe

as Jerry

as Howard Smith(1 ep)

as Ken Walters

as Teenage Gig

as Boy in Monitors Commercial

as Alex Scofield(1 ep)