Sidekicks

Super Chicken

Clipper King

Sky King(dammit, that was going to be my next one)

Lucille Wood Smith(good luck!)

Leonard Slye

Seriously. Leonard Slye was the real name of Roy Rogers, and Lucille Wood Smith was the real name of Dale Evans.

Chumley

Tennessee Tuxedo
Ant Hill Gang

Penelope Pitstop

Passepartout

Phileas Fogg
The Waco Kid

Sheriff Bart

Stiletto Mafiosa

Baron Silas Greenback
The Asp and Punjab

Daddy Warbucks and/or Little Orphan Annie
Sam Catchem

Dick Tracy
Jackeen J. O’Malley

Barnaby(until his sixth birthday, that is)
Hero and Devil

The Phantom
Streaky

Supergirl

Sarah Jane Smith

Doctors 3 and 4

Jimmy Slapso

Blonde Bomber
Chas Chandler

Unless there’s more than one, you must mean the guy who discovered

Jimi Hendrix
Next: Tige (the dog, not the actor)

Buster Brown
Now, the other Chas Chandler, then.

John Constantine
Cheeks, The Toy Wonder

Ambush Bug
Sluggo

Nancy

Joey McDonald