Robbie Barnett (also known as Robert J. Barnett) was a performer for one of the Landstriders and for the Mystic Numerologist in The Dark Crystal. He was one of the influences on the Landstriders' movement, having had experience in stilt walking. He also worked on the Jim Henson films The Great Muppet Caper, The Muppet Christmas Carol, and Muppet Treasure Island. Barnett has also acted in various British television projects. The focus of Barnett's professional life since the 1980s, however, has been his work as a journalist and scholar focusing on Tibet. He is the founder and director of the Modern Tibet Studies Program at Columbia University, contributes regularly to various news outlets, and runs a number of educational programs in Tibet.