Principal Cantor

Ned

Geo (voice) (10 episodes)

Inspector Howard (1 episode)

Officer Burt

Harold (voice) (36 episodes)

Pauly (2 episodes)

Graham

Samm Pansky (7 episodes)

Ted

Lt. Svoboda (1 episode)

Dark Carnage (voice) (4 episodes)

Perry (2 episodes)

Phil Smith (1 episode)

Villads (voice) (8 episodes)

Raunchy Ritchie (1 episode)

Richie (1 episode)

Rahmat

Dad's Boss

Uncle Wilbur (1 episode)

Cockroach (1 episode)

Simon Collins

Serge (voice)

Puffin Minion 1 (voice)

Vapor's Dad (voice) (1 episode)

Trainer 2 / Barker / Stage Manager (voice) (1 episode)

Big Daddy McColt (voice) (1 episode)

Big Daddy McColt / Hooffield Pony 1 (voice) (1 episode)

Carnival Barker / Resort Pony (voice) (1 episode)

Stage Manager

Eddie (voice)

Inspector

Real Estate Guy

Sniff (voice)

Jack Carlin (1 episode)

Tobin (1 episode)

Seymour Crider (voice)

Bruce Johnson (1 episode)

Demo Guy

Phil

Dr. Mark Timmons (1 episode)

Spencer / Farmer (voice)

Talent Show Teacher

Adam Brody (39 episodes)

Rolf (voice)

(104 episodes)

Max / Dad (voice)

Director

Deputy D.A. Hilliard

(voice) (12 episodes)

Principal Petlic (1 episode)

Prosecutor (1 episode)

Rolf (voice)

Police Tech (1 episode)

Martin Parker

Mickey

Brutus (voice)

Rodeo Announcer

Kevin

Kenny

Rolf (voice)

Editor

Hotel Clerk

(75 episodes)

Rolf (voice)

Rolf (voice)

Pickle (Voice) (78 episodes)

Morgue Attendant (1 episode)

Polly (voice)

Bob Lang (1 episode)

Polly (voice)

Contractor (voice) (1 episode)

Clerk John (voice) (1 episode)

Haz Chem Guide / Boy 1 (voice) (1 episode)

Dr. Comito

Dr. Langham (1 episode)

Coyle Boron (1 episode)

Lew Gallo (1 episode)

Otto / Skinny Swordsman (voice)

AM USA Producer

Dr. Stinger (voice) (26 episodes)

Rolf (voice) (archive footage) (uncredited)

Elf Foreman (voice)

Pimm (voice)

Jeremy

Reporter

Grask (1 episode)

Casino Thug (1 episode)

Mayor Doge Miskich (1 episode)

Bugsy / Easter Squirrel (voice)

Herbert Finkle (52 episodes)

Tog (voice)

Rikki Syngh-Baines (voice) (26 episodes)

Mazzo

Mr. Greenfield

Simon "Fitz" Fitzpatrick (voice) (40 episodes)

Inter-Galactic Cop (voice)

Robert Poirer, Lia's Husband

Brain Wakefield (1 episode)

Stan Draper (1 episode)

Rolf (voice) (126 episodes)

Conway the Bus Driver

Ed Warner (1 episode)

Purser Jennings

Angelo

Neighbor

Writer One

Potter's Caddy

Glenn (1 episode)

O'Dell (1 episode)

Lt. Foyle (1 episode)

Second Husband (1 episode)

Assistant D.A. Daniel Costa (1 episode)

Roberts

Brother #4 (1 episode)