Yefima is a Turkish smiley sailor who appears in the film Tintin and the Mystery of the Golden Fleece in The Adventures of Tintin series. He was first seen cleaning the deck and was yelled at by Captain Archibald Haddock for turning west. He was yelled at for not understanding him.
Haddock then suspects him, and Attila Thai, not knowing that Attila is a police officer, and was revealed later on that he is working for Anton Karabine by taking the oil out of the fuel tank. He tries to escape and was fighting Tintin. He prepares to kill Tintin, but Tintin flung him into the water.
He alerts Karabine by going to the helicopter. He was trying to rescue the wounded Angorapoulos but he was later arrested by Attila and the officers, including Thompson and Thomson.