The same as he did for other episodes, Robert Shield was going to play the doctor and his name was credited, but the role was merged to the Pastor character (House Peters Jr.) who did medical assistance as well.
Frank McCauley Is driving a 1948 Pontiac Torpedo 2 door Business Coupe with a Silver Streak Straight 8 engine. The "Silver 8 Streak" is visible during a side shot. In 1948, the Straight 8 displaced 248.9 cu in, and produced 107hp and 190 lb.ft. of Torque.