Underdog

Underdog Cast

69 cast members · 20 with popularity data

Most Popular Underdog Cast Members

Taylor Momsen is currently the most popular Underdog cast member online with a Attention Score of 8.5. 1 of 69 cast members rank in the top 1,000 actors online today. Updated October 13, 2026.

Polly Purebred (voice)

Dr. Simon Barsinister

Patrick Warburton

Bulldog / Supershep 4 (voice)

Riff Raff (voice)

Shoeshine / Underdog (voice)

Supershep 1 (voice)

Supershep 2 (voice)

Astronaut (voice)

#13,040 overall

Little Brown Dog / Supershep 3 (voice)

#15,642 overall

#36,844 overall

Ezra Buzzington

#40,617 overall

Police Sergeant

#56,912 overall

#59,283 overall

Danny Mastrogiorgio

Crazy Dog (voice)

#64,217 overall

Alexander 'Alex' Garde

Christopher Francis Byrnes

Mailman (as Christopher Byrnes)

News Stand Guy (as Joseph Siriani)

Office Worker #1

Office Worker #2

Bruce-Robert Serafin

City Worker (as Bruce Serafin)

Anthony Estrella

Male School Teacher (as Tony Estrella)

Bomb Squad Officer

Lewis D. Wheeler

Geek with Glasses

Courtney O'Reagan

Rebekah Aramini

Fox Collar Lady

Richney Fischer

Cat Burglar Police #1

Cat Burglar Police #2

Stephen James Kidd

Bomb Squad Member (as Steve Kidd)

Rena Maliszewski

Police Secretary

Bomb Squad Officer #2 (as Robert Boehm)

Lincoln P. Sisson

Bomb Squad Officer #3

Harry L. Thomas

Capitol City Security

Capitol City Cop

Capitol City Cop

Hot Dog Contestant

Chris Andrew Ciulla

Fireman (as Chris Ciulla)

Stuart F. Wilson

Observer (uncredited)

Office Worker (uncredited)

Michael Tyler Henry

Jack Unger (voice)

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