After working at the Weilheimer Theatersommer under Cordula Trantow and the Rheinisches Landestheater Neuss (1995–96), Regout moved to Berlin, where they appeared in several theaters, Sophiensaele and Schillertheater-Werkstatt being two of them.
Regout had first appearances on TV in Series as Klinik unter Palmen (1998, ARD), Edel & Starck (2002, Sat1) and Alarm für Cobra 11 (2003, RTL).
From 2005 until 2007, Regout starred in 645 episodes of the Sat1-Telenovela Verliebt in Berlin (based on Betty la fea from Colombia) in the role of fashion designer Hugo Haas.
In February 2009, they joined the TV show Verbotene Liebe (Forbidden Love) on recurring basis in the role of Eduard von Tepp.
In 2014, Regout starred as the ‘Son’ in Adam Rapp’s Pulitzer Prize short - listed, NOCTURNE, which garnered great reviews including from the Los Angeles Times.