Galileo is a Japanese television drama based on the Detective Galileo novels by mystery writer Keigo Higashino . It narrates the events and cases encountered by Kaoru Utsumi, a rookie detective, and Manabu Yukawa, a university associate professor, as the two pair up to solve many mysterious cases. A special episode titled "Galileo Episode 0", set 3 years before the television series, aired on October 4, 2008, on the same day as the release of the film Suspect X.

Ryōko Hirosue is a Japanese actress and singer, best known to international audiences for her roles in the Luc Besson-produced Wasabi and the Academy Award-winning Japanese film Departures. She also starred in the 2008 comedy series Yasuko to Kenji.