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Underdog

8.019643 seasonsTV SeriesAnimationAction & AdventureComedy

There's no need to fear! Underdog is here! When criminals in this world appear And break the laws that they should fear And frighten all who see or hear The cry goes up both far and near For Underdog! Underdog! Underdog! Underdog! Speed of…

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Seasons & Episodes

Underdog: Just In Case 1&2 / Klondike Kat: Honor At Steak / Tooter The Turtle: Mish Mash Mush

Oct 3, 1966

Underdog: Just In Case 3&4 / Klondike Kat: Secret Weapon / Tooter The Turtle: Drafthead

Oct 10, 1966

Underdog: The Marble Heads 1&2 / Klondike Kat: The Big Fromage / Tooter The Turtle: Quarterback Hack

Oct 17, 1966

Underdog: The Marble Heads 3&4 / Klondike Kat: Hard To Guard / Tooter The Turtle: Duck Hunter

Oct 24, 1966

Underdog: Simon Says Be My Valentine 1&2 / Klondike Kat: The Candy Mine / The Hunter: Duck Hula Hoop Havoc

Oct 31, 1966

Underdog: Simon Says Be My Valentine 3&4 / Klondike Kat: Rotten To The Core / Tooter The Turtle: Taxi Turtle

Nov 7, 1966

Underdog: Round and Round 1&2 / Klondike Kat: Trap Baiting / Tooter The Turtle: Kink Of Swat

Nov 14, 1966

Underdog: Round and Round 3&4 / Klondike Kat: Gravy Train / The Hunter: Frankfurter Fix

Nov 21, 1966

Underdog: A New Villain 1&2 / Klondike Kat: Cream Puff Buff / Tooter The Turtle: Tuesday Turtle

Nov 28, 1966

E10

Underdog: A New Villain 3&4 / Klondike Kat: Plane Food / Tooter The Turtle: Buffaloed Bill

Dec 5, 1966

E11

Underdog: Batty Man 1&2 / Klondike Kat: Banana Skinned / Tooter The Turtle: Snafu Safari

Dec 12, 1966

E12

Underdog: Batty Man 3&4 / Klondike Kat: Up a Tree / Tooter The Turtle: The Master Builder

Dec 19, 1966

E13

Underdog: The Vacuum Gun 1&2 / Klondike Kat: Pie Fly / Tooter The Turtle: Anti-Arctic

Dec 26, 1966

E14

Underdog: The Vacuum Gun 3&4 / Klondike Kat: Jail Break / Tooter The Turtle: Muddled Mountie

Jan 2, 1967

Cast

Wally Cox

Underdog (Voice)

Norma MacMillan

Sweet Polly Purebred (Voice)

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Underdog — streaming FAQ

Which OTT platform streams Underdog?

Underdog isn't streaming anywhere in Mexico yet.

Is Underdog on Netflix?

No, Underdog is not on Netflix in Mexico as of August 2026.

Is Underdog on Amazon Prime Video?

No, Underdog isn't on Amazon Prime Video in Mexico right now.

Where can I watch Underdog for free?

Underdog isn't streaming in Mexico yet, so there's no way to watch it free at the moment.

How many seasons does Underdog have?

Underdog has 3 seasons so far.

Are all episodes of Underdog out yet?

The 3 released seasons of Underdog are complete, but the show is still in production — a new season is expected.

Is there a Season 4 of Underdog?

A Season 4 of Underdog hasn't been officially confirmed yet.