Casal is not a popular first name.
First names and their meaning - Page 8748
Cashier
Cashier is not a popular first name.
Casley
Casley is not a popular first name.
Castin
Castin is not a popular first name. It is more often used as a boy (male) name.
Cavett
Cavett is not a popular first name. It is more often used as a boy (male) name.
Caw
Meaning: Full of joy. 
Caw is not a popular first name. It is more often used as a boy (male) name. 
Cayabyab
Cayabyab is not a popular first name.
Ceit
Origin: Scottish-Gaelic. 
Meaning: Pure. 
Ceit is not a popular first name. It is more often used as a girl (female) name. 
Chafe
Chafe is not a popular first name.
Chaika
Meaning: Life. 
Chaika is not a popular first name. It is more often used as a boy (male) name.