'Dame Margot Fonteyn de Arias' (1919–1991) was an English ballerina of the 20th century. She is widely regarded as one of the greatest classical ballet dancers of all time. She spent her entire career as a dancer with the Royal Ballet, eventually being appointed Prima Ballerina Assoluta (a very rare honor) of the company by HM Queen Elizabeth II.
From the perfect authority of his stance, I am guessing this is a member of Les Ballets Trockadero de Monte Carlo, because so few male dancers have the strength and technical wherewithal to dance en pointe (see link). Anybody know more? *maybe* Duane Gosa? Boysie Dikobe??