His mother, Dorothea Trebs, is a talent agent,[1] and his siblings Enno, Lilli, Nele, and Pepe[2] are also young German actors.

Trebs previously played supporting roles in Lilly the Witch – The Dragon and the Magic Book (2008); Krupp – A German Family (2008), as Alfried Krupp (aged 10–13 years); and as Ferdinand in Michael Haneke's award-winning historical drama The White Ribbon (2009).

In 2010 he appeared in Rammbock and in the television crime series Inspektor Barbarotti – Mensch ohne Hund.

In 2011 he appeared as Felix Hartung in the soccer-themed dramatic film, Lessons of a Dream,[3] which earned him a Young Artist Award nomination as "Best Leading Young Actor in an International Feature Film".

[4] In his spare time, he is active in sports, especially as sailor in a youth class (29er).