ken Fran fick mick mike mack
Some use PhD(c)
The last two letters "PA" means "Professional Association"
Clemente (baseball player)
cassiopeia
condor
CraneCutiaCrake
I'm going to assume you mean combinations - the unique set of these letters in any order with no sequence repeated. With these letters, there are 60 possible combinations. To see the maths behind this, try typing "permutations of {c,c,c,p,p,k}" into wolfram alpha.
Clark
Macau
roach
You are cute
"C"