Charlie is already a nickname. It is the nickname for Charles. In addition to Charlie, other nicknames for Charles include Chuck, and Chuckie.
Chaz is a nickname for Charlie.
Pete Rose was given tjhe nickname Charlie Hustle
Charles somtimes gets the nickname Chas or Charlie.
Baz, thinking back to his surname bazinsci.
A common nickname for someone from Carlisle is a "Cumbrian."
Charlie Parker
Charlie "Bird" Parker
He was known as Little Red.
Bob calls Charlie "Nothing."
"Bells" is Charlie Swan's nickname for his daughter Bella in "Twilight."Bella's name is actually Isabella. But she dislikes the name and prefers to shorten it to Bella. Charlie undoubtedly likes Bella's real first name, because he calls her that behind her back. To Bella's face, though, he has his own nickname of "Bells."
Haywire
charlie
Pete Rose.