Ultron (voice) (4 episodes)

Ultron (voice)

Self (3 episodes)

Aloysius Duffy

Self (5 episodes)

Raymond 'Red' Reddington (218 episodes)

Executive Producer (196 episodes)

Co-Executive Producer (22 episodes)

James Ballard (1 episode)

W.N. Bilbo

(archive footage)

Self (1 episode)

Robert California (25 episodes)

Carbon Black

Self - Nominee (1 episode)

(1 episode)

(11 episodes)

Self - Guest (1 episode)

(1 episode)

Self (2 episodes)

Alan Shore (101 episodes)

William Ashbury

Self - Guest (4 episodes)

Self (2 episodes)

Alan Shore (22 episodes)

Self (1 episode)

Julian Rome

Douglas Draper

Daniel Ellsberg

Self (5 episodes)

Mr. Grey

John Parker

Dr. Roger Klink

Marcus

FBI Special Agent Joel Campbell

Nick Vanzant

Stevenson Lowe

Jason 'Stanky' Hanky (1 episode)

Dr. Werner Ernst

Ronnie Stover

The Man

Lee Woods

James Ballard

Ray Reardon

Dr. Daniel Jackson

Steven (voice) (1 episode)

Stewart Swinton

Jack Pozzi

Chuck Marlin

Cray Fowler

Tim Gerrity

Max Baron

Michael Boll

Graham Dalton

Deforest

John Allen Wesford / Richard Wesford

Roger Barnes

Rip

Ken Arrenberg

Mr. Richards

Steff McKee

Joey Callaghan

Eddie Dutra

Morgan Hiller

Lowell Everall

Donny Tison

Fenwick

Buddy Gant

(6 episodes)

Keith

Jimmy