Millionaire socialite art dealer Radley Crown (voiced by Gary Owens) and his mechanical mongrel, Dynomutt (voiced by Frank Welker who got the inspiration for the voice from the Gertrude and Heathcliff characters of Red Skelton), enjoy leisure time in their base of operations Big City, until alerted by the Falcon Flash. They immediately dash for the Falcon's Lair (situated in Crown's penthouse apartment), where they switch to their secret identities, the Blue Falcon and Dog Wonder, respectively. Blue Falcon and Dynomutt receive the report via TV screen from the secret GHQ of secret agent F.O.C.U.S. One (voiced by Ron Feinberg) and jump into the Falconcar and speed into the fray against assorted evildoers.
In a coup similar to the 1960s Batman TV series, the first 10 minutes of Dynomutt ends with a cliffhanger wherein the Daring Duo, in the clutches of their foes, are subjected to a perilous fate which is resolved immediately after the commercial. Like many animated series created by Hanna-Barbera in the 1970s, the show contains a laugh track created by the studio.
The metallic mutt employs a system of miniaturized transistors which allow him to extend his limbs or neck and use them to perform extraordinary feats; however, none of them ever work properly. B.F. (as D.W. lovingly refers to him), is more Dynomutt's victim than his master, forever being hamstrung by the latter's insufferably clumsy mechanized mishaps, which often results in Blue Falcon calling Dynomutt "Dog Blunder". Nevertheless, Dynomutt and the Blue Falcon, who is equipped with his own arsenal of supergadgetry, manage to get the situation well in hand.
Dynomutt, Dog Wonder has the historic significance of casting the first African-American public official in Saturday morning cartoons in the form of Mayor Gaunt (voiced by Larry McCormick).


  • Reggie/Dynomutt, Dog Wonder (Frank Welker)
  • Radley Crown/Blue Falcon (Gary Owens)
  • Mayor Gaunt (Larry McCormick)
  • Chief Grimsley (John Stephenson)
  • F.O.C.U.S. One (Ron Feinberg) - Focus is short for ???


No. Episode Title Original Air Date Plot
1 Everyone Hyde September 11, 1976 Willie the Weasel has created a formula that turns him into Mr. Hyde. While Blue Falcon and Dynomutt are on the trail of the mysterious Mr. Hyde, they encounter the Mystery Inc. gang and Scooby-Doo (who are unaware that Mr. Hyde is a supervillain and not one of their typical "spooks"). In The New Scooby-Doo Movies-fashion, they team-up with Blue Falcon and Dynomutt (who happens to be Scooby's hero) to stop Mr. Hyde who has threaten to turn the entire city into Mr. Hyde's unless he is proclaimed Mayor. Fred and the others find a clue (which turns out to be Willie the Weasel's glove) and Blue Falcon deduces he is Mr. Hyde. Blue Falcon & Dynomutt have Mr. Hyde proclaimed Mayor and pretend to be turned in so Mr. Hyde will lead them to his secret lair and trick him into showing them the antidote to the Hyde formula. Willie the Weasel and his canine partner-in-crime "Snitch" manage to escape. Blue Falcon and Dynomutt head to the Mayor's Mansion to stop Hyde from retrieving his stolen loot. The Mystery Inc. gang setup one of their infamous "Scooby Traps" while Blue Falcon & Dynomutt confront Mr. Hyde and Snitch. Dynomutt captures Snitch while Blue Falcon and the Mystery Inc. crew capture Willie the Weasel/Mr. Hyde.
2 What Now, Lowbrow? September 18, 1976 A caveman-like criminal named Lowbrow wants to become the King of Crime and steals some books that will help him in his quest. Blue Falcon and Dynomutt end up assisted by Mystery Inc. into stopping Lowbrow.
3 The Great Brain...Train Robbery September 25, 1976