Characters based on real life personas

Shoe Shine Boy/Underdog was Wally Cox's persona, perhaps based on "Mr. Peepers"

Riff Raff - A play on the name of actor George Raft, who played gangsters in old
movies of the 40's and 50's(kind of resembled him too). The voice however,
sounded much like Sheldon Leonard.

Simon Bar-Sinister - Based on Lionel Barrymore (Mr. Potter in "It's A Wonderful
Life") Also reminded me of Tom Teriffic's adversary Crabby Appleton.

Tennessee Tuxedo - Essentially Don Adams characterization.

Yakety Yak - Joe E. Ross (Fred Gwynne's partner in "Car 54, Where Are You?")

Baldy Eagle - Ned Sparks, known for his monotone, deadpan delivery of his lines
in the movies he acted in.

Major Minor - Looked and sounded like British comedic actor Terry-Thomas.

Major Kit Coyote - Another play on names. Kit Carson was an old American west
figure, however the cartoon character's mannerisms more resembled about every
portrayal of Colonel/President Teddy Roosevelt.

Seargent - Perhaps Brian Keith

Jeriboah Jump - Possibly based on a young Conrad Janis?

Savoir Fare - Another version of a Pepe LePew characterisation.

Anyone have any thoughts as to who the characters of Stanley Livingston, Chumley, Tiger, Klondyke Kat, Mr. Whoopie, and Commander McBragg were based on?