David C Tam goes by Dave.
Manuel C Cruz goes by Manny.
Michael C Hoaglin goes by Mike.
Courtney Amber goes by C. Pure, and C. Poo.
Candice Sanders goes by C.
Charlie Nadler goes by C$.
Mariah C Robinson goes by Mars, Bubba, and MRob.
Cabral Rock goes by C-Rock.
Kacey Barnfield goes by K C.
Natalie Caruso goes by Natty C.
Sam Carmichael goes by Sammy C.
Art Carney went by Mr. C.
Tia Caroleo goes by Ms. C.