Dr. Leonard "Bones" McCoy was 38 years old at the beginning of Star Trek: The Original Series (TOS) and 42 years old by the end of its run.
Dr. Leonard "Bones" McCoy's Age Throughout TOS
Born in the year 2227, Dr. McCoy's timeline in Star Trek: The Original Series (TOS) is clearly defined, positioning him as an experienced Starfleet officer from the outset. His age provided a grounding presence within the USS Enterprise's command crew.
Here's a breakdown of Dr. McCoy's age during key periods of Star Trek: The Original Series:
| Event | Dr. McCoy's Age | Year of Birth |
|---|---|---|
| Start of TOS | 38 | 2227 |
| End of TOS | 42 | 2227 |
Key Details on Dr. McCoy's Age
- Birth Year: Leonard McCoy was born in 2227.
- Series Duration: His age progression from 38 to 42 covers the entirety of Star Trek: The Original Series, which aired from 1966 to 1969, depicting events in the late 23rd century.
- Main Cast: Among the core crew members of the USS Enterprise, Dr. McCoy was the second oldest character in the main cast.
