Answer:

SPOCK

AnswerCrossword Clue
SPOCKKirk's second in command
SPOCK"Enterprise" officer
SPOCKTV semi-alien
SPOCKSon of Sarek and Amanda, on "Star Trek"
SPOCKKirk's second-in-command
SPOCKPointy-eared "Star Trek" guy
SPOCKLogical character
SPOCKPointy-eared TV character
SPOCKMarley ... (2008 film about a dog)
SPOCKEither of two characters in a 2009 sci-fi reboot
SPOCKClassic role for Nimoy
SPOCK"Baby and Child Care" author
SPOCK"Star Trek" character
SPOCKSci-fi logician
SPOCKHe wrote a well-known baby book.
SPOCKAuthority on child care.
SPOCKAuthority on babies.
SPOCKPopular pediatrician.
SPOCKDr. Holt, Dr. Bartlett, Dr. ....
SPOCKMother's favorite author.
SPOCKBaby doctor.
SPOCKWell-known doctor.
SPOCKDoctor-author
SPOCKChild-care name
SPOCKAmerican physician-author
SPOCKLogical thinker
SPOCKDr. or Mr.
SPOCKLogician in space
SPOCKLate writer with a 1946 best seller
SPOCKEnterprise officer
SPOCKLogical Mr.
SPOCKSon of Sarek
SPOCKSecond-in-command to Captain Kirk
SPOCK"Live long and prosper" speaker
SPOCKTV character who says "Captain, you almost make me believe in luck"
SPOCK"I Am Not ..." (1975 show business autobiography)
SPOCKNimoy role
SPOCKMemorable Vulcan
SPOCKBaby doctor
SPOCKBaby-boomers' advisor