Angela Bassett
Victor Borge had a nickname of The Great Dane.
Savannah Guthrie
Christopher Cockerell
For a long while, the only psychiatrist who could deal with Adrian Monk was played by Stanley Kamel.
If Mutt is the name of an animal then “Mutt” Lange is another. He’s a music producer, writer and husband of Shania Twain,
(I searched for “mutt” in the thread and there is “burpo the wonder mutt”, but famous here probably doesn’t count)
Award-winning actress Coral Browne was in THEATRE OF BLOOD with — well, yes, her future husband Vincent Price, but also with Robert Coote.
Famous? You’re too kind. 
Tom Llamas, TV journalist
95 posts? About Damn Time!
Did you notice that Catfish is not his real name?
:flees:
Charlie Tuna (pseudonym of TV and radio announcer Arthur W. Ferguson)
David, Arthur, and Mindy Elk (attorneys with the Elk + Elk law firm)
Chappell Roan (stage name of singer Kayleigh Rose Amstutz, whose hits include Pink Pony Club)
Elwin “Preacher” Roe (Major League Baseball pitcher)
Isn’t roe pre-animal?
never mind
Hamilton Fish
Dick Tiger (boxer)
Japanese Lady wrestler Bull Nakano
CNN anchor and bestselling author Nicole Lapin
There are a jillion famoua people named Jack; dunno if it was a person’s name or fish name first. Edit: it was named by Linnaeus, so certainly the person’s name came first.
Lots of people have had the nickname Possum or The Possum; probably the most famous of them is country music star George Jones.
Roe or roe deer is a small deer of Europe and Asia. The word has a different etymology from roe, the fish eggs.
