Sonja Spuhl (née Scherff) (born 20 October 1977 in Berlin) is a German voice actress who provided voices for the German dub of Thomas and the Magic Railroad.
She is best known for voicing Penny from "The Big Bang Theory", Paris Geller from "Gilmore Girls", Emma Pillsbury from "Glee", Raven Baxter from the first two series of "That’s So Raven", Aubrey from "Pitch Perfect", Envy Adams from "Scott Pilgrim vs. The World", Lex Murphy from "The Lost World: Jurassic Park" as well as several characters from "Barbie", "Supernatural", "Goosebumps", "Buffy the Vampire Slayer" and "Pirates of the Caribbean".
She is also the German voice of actresses such as Christina Ricci, Mena Suvari and Priyanka Chopra and she is sister of Viola Scherff.