Sinan Güleç is an actor born in 1995 in Konstanz, Germany. He spent part of his childhood in Turkey, having moved there in 2005 with his family, and later returned to Germany in 2018 to study acting at the Hochschule für Schauspielkunst Ernst Busch in Berlin. He has worked at various theaters, including Schauspiel Köln and from the 2025/26 season is a permanent ensemble member at the Thalia Theater. He is known for roles in theater and film and is represented by the Schlag Agency. He speaks Turkish, German, and English fluently and has performed in several stage productions during his studies.

There is also an Op. Dr. Sinan Güleç who is a medical professional specializing in gynecology and obstetrics in Istanbul; however, this is a different person with the same name.