Booker Kudo, also known as Yusaku Kudo (工藤 優作 Kudō Yūsaku?)

Booker Kudo, also known as Yusaku Kudo (工藤 優作 Kudō Yūsaku^?) in Japan, is a fictional character of the anime and manga Case Closed, known in Japan as Detective Conan (名探偵コナン Meitantei Conan). Booker Kudo is a famousmystery novelist married to Vivian Kudo. The two have one son, Jimmy Kudo.^[1] His original Japanese name Yusaku Kudo refers to actor Yusaku Matsuda and Shunsaku Kudo, the detective played by Matsuda.^{[citation needed]}

Booker's novels are known worldwide often starring the Night Baron; Knight Baron in the dubbed animation, a fictional villain in his stories.^[2] Twenty years prior to the start of the series, he helped Inspector Meguire solve many cases,^[3] much as his son now.^[4] However, Booker never sees himself as anything but a writer. Because of his fame, he and Vivian move to Los Angeles one year before the story begins, leaving their Jimmy at fourteen years behind for school.As his son can be compared to Sherlock Holmes he would be compared to Sherlock's older brother Mycroft. As he is a better detective but chooses not to be one.

When Jimmy was still in the first grade, he and the previous Phantom Thief 1412, used to be rivals.^[5] He created the name Phantom Thief Kid when he read 1412, as KID, making him technically a parent of Phantom Thief Kid figuratively.^[6]. It was hinted that he may have known Toichi Kuroba was the Phantom Thief Kid he was facing.^[7].

When Jimmy became Conan, he neglected to call them for many months causing them to worry about him. They return to Japan where Agasa tells them about Jimmy's poisoning and his double life as Conan. In an attempt to convince Conan that he should join his parents in Los Angeles, Booker disguises himself the Night Baron and Vivian disguises herself as Fanny Edogawa, pretending to be Conan's actual mother. With Dr. Agasa's help, they stage a kidnapping in an attempt to prove to Jimmy that he can not handle the organization he is facing himself, as he has failed against the fake kidnapping.

In episode 96, Booker appears once again, this time in an attempt to sharpen Conan's skills, although the fact that Booker is the mysterious man is not revealed until the end. It turns out that he had also come to win Vivian's forgiveness for some unknown offense and to take her back home with him.

He also makes a short appearance in episode 145 to save his wife in time from being pushed in front of a bullet train by a murderer.

He also players a major role in the Sixth Movie such as designing a Sherlock Holmes virtual video game of London.