Professor Frank, simply known as The Professor in the English version, is one of Goodwin's 5 Dueling Assassins placed in the Fortune Cup with the intent of exposing the Signers, as well a member of Yliaster. In the Japanese version, Professor Frank has a catchphrase "sa", which he says 3 times. "Sa" is used in Japanese to beckon somebody. In the English version, this is replaced by a constant usage of analogy and simile, both regular and homeric. (Source: Yu-Gi-Oh! Wikia)