Since his official retirement, Dr. King has continued to work
occasionally as a relief doctor at the clinic, filling in when other doctors are ill or on vacation.
All the while, Jiro and his best friend Honjo (voice of John Krasinski) are struggling both to succeed
as engineers and to please their cranky, diminutive boss (voice of Martin Short), one of the few characters in this sometimes dour epic who
occasionally serves up some comic
relief.