Jan Josef Liefers, born on August 8, 1964, in Dresden, Germany, is a German actor and singer. He comes from a theatrical family, with his father Karlheinz Liefers being a director and his mother Brigitte Liefers-Wähner an actress. Liefers' early career began at the Studententheater Die Bühne of the Technical University Dresden, followed by engagements at the Deutsche Theater Berlin and Thalia Theater in Hamburg. Liefers' music career started with the release of his debut album Jack's Baby in 1999. His breakthrough as a singer came with the single “Don't Let Go”, released in 2002, which was featured on his second album Oblivion, released the same year. Liefers has also ventured into film and television, notably playing the role of Rechtsmediziner Prof. Dr. Dr. Karl-Friedrich Boerne in the long-running series Tatort since 2002. His acting career includes significant roles in films such as Rossini – oder die mörderische Frage, wer mit wem schlief, for which he received the Bayerischer Filmpreis für Nachwuchsschauspieler in 1996, and Knockin’ on Heaven’s Door. Liefers has also directed and produced several films through his production company Radiodoria Film.