Clemens "Ardek" Wijers (born 10 November 1983) is a Dutch keyboardist, pianist, and composer best known as the keyboardist of Dutch symphonic black metal band Carach Angren. Before Carach Angren, Wijers played with Dark Mutation and then Vaultage where he met Dennis "Seregor" Droomers and they began Carach Angren as a side project, when the two connected over a shared love of horror and storytelling. Later Vaultage disbanded when Carach Angren became increasingly successful.