Simon Craig

From Tardis Wiki, the free Doctor Who reference

Simon Craig was the clone of Robert Craig, who, being sterile, was unable to father children on his own. Craig set up the Caru Clinic to find a cure for the genetic damage inherent in most clones. Jack Harkness killed Craig to avenge the murder of Alice Proctor, leaving Simon in the care of the Arcanis Servitorus. (AUDIO: Hidden)