Sidekicks

Prospero
Azrael

Batman
King

[Actually, I had in mind Gargamel’s cat Azrael, but Batman works.)
Sgt. Preston

Peter Boyd

No idea on Boyd- just bumping to keep this active (if somebody doesn’t get it soon, I’ll cheat and Google it!)

If it helps, it’s Prof. Peter Boyd, and not the guy from Waking The Dead.

Bonzo

J. Fred Muggs

Another chimp! Dave Garroway

Nordberg

Frank Drebbin
Buttons

Baron Hardup
or
Sinderella
Godzooky

Either Uncle Godzilla or Pete Darian

Zorak

Brak

Gabrielle

Xena

Iolaus

Hercules.

Ned Gerblansky

Jimbo Kern
Garry Moore

Durward Kirby…but it was Kirby that was sidekick to Moore, I believe.
Bob, Agent of Hydra

[Kirby was Moore’s sidekick, but, earlier, Moore was Jimmy Durante’s sidekick on his radio show. Durante’s catchphrase “Dat’s my boy who said dat, and I wish I knew what it meant.” references Garry as his boy. The phrase was later coopted by Hanna-Barbara’s Doggie Daddy regarding Augie Doggy.]

Thanks-I did not know about the earlier Durante/Moore history, and will probably hit my radio archives for a listen.

Deathpool

Vir Cotto

Londo Mollari
ZZZ

How about ZZZ, aka “Lila”