Henry Kissinger

In Homeward Bound, the American chosen to head the Admiral Peary's diplomatic mission as ambassador is referred to as "The Doctor." He is mentioned as having a deep and distinctive accent, having fled Nazi Germany to the United States, and having attended Harvard in the early 1940s. His biography very closely matches that of Dr Henry Kissinger, and nearly all readers assume that this is his true identity.

The Doctor died of complications when the Admiral Peary's medical staff attempted to revive him from cold sleep. The Race requested that Sam Yeager serve in his place.