Write SQL query to solve given problem: Who is the youngest person to ever play a "clerk" role in the series?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.name FROM Credit AS T1 INNER JOIN Person AS T2 ON T2.person_id = T1.person_id WHERE T1.role = 'Clerk' AND T2.birthdate IS NOT NULL ORDER BY T2.birthdate LIMIT 1