Self - Host

Don 'Pop' Phillips

King Neptune (voice)

Arnold Harris

Self (2 episodes)

Hades Burns (voice) (1 episode)

King Neptune (voice) (2 episodes)

General Zartogg

Rear Admiral Ted Gordon (1 episode)

God (voice)

Roger Doofenshmirtz (voice)

Walter

Rex

(voice) (1 episode)

Glenn

Influenza (1 episode)

Father David

Ellis Crane (voice) (3 episodes)

Dentyne Executive / Pilot (voice) (1 episode)

Vex Mullery (voice) (1 episode)

Christopher Neff (7 episodes)

Roger (voice)

Gothball (voice) (10 episodes)

Mr. Slate (voice)

Donny De Bona

Roger Doofenshmirtz (voice)

Knight Lilliputtian (voice) (1 episode)

Roger Doofenshmirtz (voice)

The Great Pauldini (voice)

Buddy Hennings (1 episode)

Mr. Rexford

Narrator (1 episode)

Lola's Dad (voice) (1 episode)

Skipper Shelton (voice) (8 episodes)

Captain Jim Bob Sherwood (1 episode)

Drug PSA (voice)

Self - Restaurant Patron (1 episode)

Sir Sinclair M. Skeeto

Silvano

Roger Doofenshmirtz (voice) (27 episodes)

Ro-juh Doofengung (voice) (1 episode)

Self

Kringle (voice)

Self - Host (1 episode)

Peter (1 episode)

Self (1 episode)

Dr. Carlson (1 episode)

Self - Contestant (8 episodes)

Self - Audience Member (1 episode)

Buck Reynolds (1 episode)

Blake (voice) (4 episodes)

Mr. Simms

Roger Heidecker (11 episodes)

Star Johnson (voice) (1 episode)

Captain Star Johnson (voice) (3 episodes)

Beavis Bottomczek (voice) (1 episode)

Mayor Snipper (voice) (1 episode)

Self - Host (24 episodes)

Phantom Blot (voice) (1 episode)

Neils (voice)

Tim 'Timbo' Chadway

Professor Beltran (1 episode)

Johannes Niels (voice) (2 episodes)

Earle Hansen

Richard Mecks

Mr. Bill Erlicht (4 episodes)

King Nova (voice) (5 episodes)

King Neptune (voice) (5 episodes)

Mayor Sam

(1 episode)

Walter Drooz

Paul Holdrith

Cult Leader (voice) (1 episode)

(voice) (1 episode)

King Cinyras (voice) (1 episode)

Announcer #2 (1 episode)

Woody Woodson (1 episode)

Stewart

Stewart Collins

David Coopersmith (1 episode)

Mr. Ferber (1 episode)

Dr. Pollidori (1 episode)

Robert McSwain (12 episodes)

Hugh Sterling (1 episode)

Hal Damon

Johnny on TV Show (voice) (1 episode)

Ted Dunleavy

Brad Shaw (2 episodes)

Dr. VonDerphal (1 episode)

Hennessey

Dr. Salters (1 episode)

Cal (1 episode)

Grant (1 episode)

Kyle Roberts (1 episode)

John Marshall (1 episode)

Lt. Cabrell

Kemp (1 episode)

Jean Luc Gerard (1 episode)

Ralph Stafford (1 episode)

J. Peterman (22 episodes)

Tad Sherman (11 episodes)

Thomas Jay Fallow (1 episode)

Allen Cooper (1 episode)

(1 episode)

Howard Gurman (6 episodes)

Paul Manetti

Detective Turner

Pat DiCicco

Stephen Slade (255 episodes)

Dolan

Greg Shaeffer (305 episodes)