Alexander Weiß, son of a secondary school teacher, was born in Hannover in 1977. He was co-founder of Dramatisches Ensemble e.V. (www.dramatisches-ensemble.de), a Nördlingen-based Theatre Society, which evolved from a group of altar servers in 1989 and has put plays on stage ever since. That’s how LEUKOS, which is his stage name, came to act on stage when he was only nine years old; the first time he was filmed was „Amorestilla“ by Ulrich Klieber in 1988.
From 2006 to 2010 he attended drama academy “Arte” in Munich and took classes with its artistic director Michael Schmucker; he successfully completed his studies in dramatic art coming top in his year.
Already during his studies he gained practical experience in directing and production; he stage-managed his first short film “Ophtalmoi” in 2004 and put “DADADEDE” on stage in 2008. In 2011 he played the role of Günther in Aron Lehmann’s “Kohlhaas oder die Verältnismäßigkeit der Mittel”, a motion picture that won the Max-Ophyls Award in 2013.
From 2012 till today he has been working on various independent theatrical projects. Furthermore, LEUKOS is an instructor for classical drama at Albrecht-Ernst-Gymnasium in Oettingen.
In September 2014 he staged an avant-garde performance called “NÖRDLINGENS teleVISIONEN” in collaboration with Dramatisches Ensemble e.V. within the context of Nördlinger Kulturnacht. He furthermore produced and stage-managed “krisensitzung”, an experimental movie, in which he played the main role.

During the COVID-19 pandemic disease he specialized in self taping auditions and self taping generally for producing his showreels. Even own radio plays, short and feature films are in planning.

In 2023 LEUKOS made his debut as a musical actor in the German version of "Little Shop of Horrors" ( „Der kleine Horrorladen“) in his hometown Nördlingen as Orin Scrivello.