- Ralf Grevelink (29 October 1962, Noordwijk) is a Dutch actor, voice actor, host, singer and stand-up comedian. His most famous television roles are Black Pete Computerpiet (1999, 2000, 2001, 2006), Fox Kids Alien (1998, 1999, 2000) and especially the voice of puppet child Sassefras from the duo Tante Soesa & Sassefras (1997, 1998, 1999, 2000, 2001).
- IMDb mini biography by: Anonymous
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