The cryptic text came in 2015 from director James Wan: “Do you know Ocean Master?” Patrick Wilson did not, in fact, know Ocean Master, or whether it was a person, a cruise ship or perhaps a chain of all-you-can-eat seafood restaurants. “Luckily in this day and age, there’s Google,” Wilson says, miming furious thumb-typing as he sips coffee in a Chelsea photo studio. “Ocean Master? Looks cool. Oh, cool mask.” Turns out, Ocean Master — aka Orm — is the ruler of the underwater kingdom of Atlantis and the archnemesis of Aquaman. And Wilson must have expertly bluffed Wan with his knowledge of undersea villains, because later this month, he dons Ocean Master’s (curiously unrusted) armor for “Aquaman.” Playing opposite Jason Momoa, who reprises his role as the titular hero, presented a particular challenge for Wilson. “Jason is like 6-foot-4,” says the 6-foot-even Wilson. “When I signed on, I said to James, ‘I want to get big for the role.’ You want to be a formidable opponent.”