Mizarian

The Mizarians are a humanoid species native to the planet Mizar II. Mizarians value peaceful non-resistance over confrontation; because of this reputation, they were conquered six times in a matter of three centuries. The Mizarians have survived these invasions by offering absolutely no resistance. Kova Tholl claimed that the Mizarians are a species known for possessing superior intelligence. (TNG: "Allegiance")

Mizarians were one of the many species that attended the biennial Trade Agreements Conference held on Betazed in 2366. (TNG: "Ménage à Troi")

A Mizarian was a customer in a bar on Torman V, when Jean-Luc Picard, Beverly Crusher and Worf were undercover on the planet in 2369. (TNG: "Chain of Command, Part I")

A Mizarian was aboard the USS Enterprise-D shortly before it was destroyed. (Star Trek Generations)

Michael Westmore once commented that a typical Mizerian looked "almost like a villain from Dick Tracy." The elaborate hood often seen atop a Mizerian's head led the TNG makeup crew to nickname one of these aliens (namely, Kova Tholl) "The Sydney Opera House Head." (Star Trek: The Next Generation Makeup FX Journal, p. 65)