While watching the TV series Midsomer Murders I came across these two names that were used for characters and would be interested in any information available about them.
Esslyn - masculine, the character it was used on was a British stage actor full name Esslyn Carmichael. It looks a bit Welsh to me but I can't find any info, the closest my searches came were Jesslyn.
Cully - feminine, the character is the daughter of the main police detective. Cully Barnaby is her full name. I assume "Cully" is short for a longer name but throughout the series she's only called by that one name. My own searches brought up Cully, Switzerland and the word Cully meaning "A fool or dupe" also "Slang pal; mate".