Known best as the bassist of the New York rock band Interpol, Dengler contributed to the group's early 2000s albums Antics and Our Love to Admire. He also became a prominent DJ in the New York club scene.
Before becoming a professional musician, he studied history and philosophy at New York University.
He performed on a Fender Jazz Bass.
He grew up in New York City and New Jersey in a family of both German and Colombian heritage.
He and rock vocalist Paul Banks were both members of Interpol.