Castle and Beckett learn about life-extension science and how far people will go for the fountain of youth when they investigate a possible homicide in which there's no body. Elsewhere, Alexis hears from Stanford University's admissions department.
- Birth Name: Jon William "Scott" Hofstedt
- Birth Place: New York, NY
- Birthday: October 23, 1976, Libra
- Profession: Actor, Producer
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