Francis Wojcienchowski (fl. 1981-), better known as "Alto Clef" or Agent "Ukelele", and known to the Serpent's Hand as the God-Killer, is an enigmatic SCP Foundation doctor that currently serves as the Director of the Department of Training and Development. Clef is well known for efficient terminations of dangerous SCPs, as well as his eccentric personality, hat, and ukulele.