Kim Pfeiffer is a German voice actress and actress based in Berlin. She completed her acting studies at the Folkwang University of the Arts in Essen from 1996 to 2000. Following her graduation, she moved to Berlin for her first professional engagement and was a permanent ensemble member at the Carrousel Theater from 2000 to 2003. Her early career also included guest performances at venues such as the Düsseldorfer Schauspielhaus, the Oval Theatre in London, and the Theater am Kurfürstendamm in Berlin.

Since 2006, Pfeiffer has been active as a speaker, with extensive work in dubbing for film and television, as well as in radio plays and audio dramas for broadcasters like WDR and SWR. Her dubbing work is diverse, having lent her voice to actresses such as Bai Ling, Natalie Mendoza, Stephanie Jacobsen, and Eva Longoria in various productions.

In the realm of anime and animated series, Kim Pfeiffer has provided the German voice for several notable characters. She is the German dubbing voice for the character Sarah Sinclair in the Netflix original anime series Hero Mask, synchronizing the role originally performed by Yūko Kaida. She also voiced Maho Shiraishi in the science fiction series A.I.C.O. -Incarnation-, dubbing the character originated by Ai Kayano. Beyond these credits, her voice work extends to audio drama series, such as her role as Frau am Telefon in the German SINCLAIR series.