No detective in animation is more endearingly persistent than Inspector Koichi Zenigata, the dogged ICPO officer who has spent decades chasing gentleman thief Arsene Lupin III across the globe. Any list of animated sleuths feels incomplete without Detective Conan (known as Case Closed in some regions), the long-running Japanese juggernaut that has aired for nearly three decades. Armed with gadgets from an eccentric inventor, including a stun-dart wristwatch and a voice-changing bow tie, he remains one of the most beloved and enduring animated detectives of all time: beyond its 1,150-plus-episode main series and 29 films, the franchise has spawned multiple spin-offs.