Simplify the following text for a Grade 6 native English-speaking person.
Original: Alan Davies ( born 6 March 1966 ) is an English comedian , writer and actor best known for starring in the TV mystery series Jonathan Creek and as the permanent panellist on the TV panel show QI .
Simplified: Alan Davies is a British comedian , writer and actor . He is best known for starring in Jonathan Creek and for being a panellist on QI .