Arnold George Dorsey willingly chose the name Engelbert Humperdinck.
Wowbagger the infinitely Prolonged is one of my fave characters, so much so that I named my cat Wowbagger. It’s from Douglas Adams’ “Life, the Universe and Everything”.
Atticus Finch
Foghorn Leghorn
Forrest Gump
Keyser Söze
Mean Mr. Mustard
mmm
Blorbo Bleepus.
According to this guy.
[https://www.youtube.com/shorts/460OAMWbt3g]https://www.youtube.com/shorts/460OAMWbt3g
For context, the beefcake names were the creation of agent Henry Wilson, with a list in the link, many of whom he bedded as well as represented. He’d originally wanted Mike Connors to be Touch Connors. The Beverly Hillbillies parodied the naming system with Ellie May’s beau Dash Riprock, plus Crunch Hardtack, Biff Steel, Bolt Upright, etc.
He named himself after the German composer who wrote the opera Hansel and Gretel.
Penelope Pitstop
Savoir-Faire eez everywhere!
Snake Plissken
Major Major
William Knot (aka.’ Will Not’ or ‘Won’t’)
Inspired by Kenny Delmar’s character Senator Beauregard Claghorn
I did not know that! Thanks for that background.
“Sugar Kane,” who always got the fuzzy end of the lollipop in Some Like It Hot.
Pepe LePew.
Porky Pig.
Lulu Moppet.
Crispy Bacon (Lulu’s Australian uncle)
Iggy Inch. (Annie’s brother)
Wilbur van Snobbe.
Richie Rich.
Cadbury (Richie’s butler)
Lotta Plump.
Dot Polka.
Scrooge McDuck.
Gyro Gearloose.
Gladstone Gander.
And, when Jethro went into acting (as Dash Riprock’s double), his stage name was Beef Jerky. 
Porn Star “Buck Naked” (George on Seinfeld)
Cosmo Kramer.
There’s a lot of great character names on Seinfeld:
Bob Sacamano
Kenny Bania
Jake Jarmel
Crazy Joe Davola
Franklin Delano Romanowski
Todd Gack
Jay Riemenschneider
Mr. Bevilacqua
Izzy Mendalbaum
Aunt Baby
Jack Klompas
Ben Pfeffer
Babs Kramer
Bob Cobb
Karl Farbman
And of course the fake names:
Art Vandelay
H.E. Pennypacker
Kel Varnsen
Wanda Pepper
Eduardo Corrochio
Don’t forget John Voight!
Professor Unrat from the Heinrich Mann novel of the same name, the source for the movie “Der blaue Engel” (The Blue Angel), one of the most famous German movies with Emil Jannings as Unrat and Marlene Dietrich as Lola in her breakthrough role. “Unrat” is the polite word for “garbage” or “filth”.
I also like Gregor Samsa, the protagonist from Franz Kafka’s “Die Verwandlung” (The Metamorphosis). It has a nice ring.
Great choice. So I’ll have to go with
Stringer Bell (The Wire)
Yosser Hughes (The Boys From The Black Stuff) (A snippet - couldn’t find the one I wanted)
j
Police partners Adam Hampton and Eve Eggers from “The John Larroquette Show”.
How about Nicholson and Dimes in True Romance?