Clemens "Ardek" Wijers is a Dutch keyboardist, pianist, and composer best known as the keyboardist of Dutch symphonic black metal band Carach Angren. Prior to forming Carach Angren with his brother Ivo "Namtar" Wijers and Dennis "Seregor" Droomers, he played with Dark Mutation and Vaultage. Wijers has written songs for Rammstein singer Till Lindemann's side project Lindemann and solo album, in addition to contributing orchestration and orchestral arrangements for Lindemann, Pain, Ex Deo and Joe Lynn Turner. He has also composed several soundtrack albums and provided soundtracks for short films.