Voices are highly individual. The present study investigated how temporal characteristics of speech can contribute to speaker individuality for the same speaker speaking in different languages. By now there is a large body of evidence showing that measures based on temporal characteristics of consonantal and vocalic interval durations show drastic within language variability that is to a high degree a result of between speaker variability (, , ). Here we present results from an experiment on L2 and bilingual Italian/German speakers. Our assumption was that if speaker idiosyncratic rhythmic characteristics exist, then they should be present across utterances from different languages produced by the same speaker.