Characters
Vulcans are well-known as the intellectual puppets of the Federation.
— Klingon Ambassador ‧ Star Trek IV: The Voyage Home
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker sneers that Vulcans are famous as the brainy puppets of the Federation, implying their intellect serves someone else's strings. It is a pointed political jab, offered as the speaker's contemptuous opinion rather than a fair description, mocking cleverness that merely obeys.
Context reviewed