Krazy Kat
Krazy Kat, a comic strip character created by George Herriman, had a friend named Ignatz Mouse. Ignatz was often seen throwing bricks at Krazy Kat, who misinterpreted it as a gesture of affection.
There is a character named Cornelia in the Disney Italia comic series W.I.T.C.H.
Dennis the Menace's neighbor, Mr. Wilson, has a dog named Ruff in the comic strip.
There was a comic strip character named Nancy, her boyfriend was Sluggo.
There is a comic strip character named Pom Pom Purin, a golden retriever created by Sanrio. Pom Pom Purin is a cheerful character known for his love of pudding and his laid-back attitude. There doesn't appear to be a character called Pom Pom Dewey in mainstream comic strips.
No cartoon or comic book characters named Maive were found. There is however a Queen Maeve who appears in 41 issues of the Seven.
Charlie Brown is the character who has a friend named Peppermint Patty, as well as friends Linus and Snoopy, in the "Peanuts" comic strip created by Charles M. Schulz.
Comic strip character Jughead Jones has a cat named Hot Dog in the Archie Comics series. Jughead's beloved pet often accompanies him on his adventures and provides comic relief in the stories.
Dagwood Bumstead from the comic strip "Blondie" was named after boxer James Jeffries. The creator of the strip, Murat Bernard "Chic" Young, was a fan of boxing and named the character Dagwood after Jeffries' trainer, William "Billy" DeWolf.
Digger is the main character of the comic of the same name, written and drawn by Ursula Vernon. Her full name is "Digger-Of-Unnecessarily-Convoluted-Tunnels," but that's kind of a mouthful. You can find the comic at http://www.diggercomic.com.
It may be named after a major character , team or theme that is present in the book .
Yes, he is a DC character who often appears in Superman stories.
Yes, there was a character named "Roy" in the Peanuts comics. He was a minor character who appeared sporadically, usually as a friend of Peppermint Patty.