[4] He then progressed to more prominent roles such as Colas in La Fille mal gardée, Oberon in The Dream and a cast member in Symphonic Variations as well as participating in the premieres of Number Three, Half the House and Galanteries.
He created further roles in Bloodlines, The Planets, Cyrano (Christian), Tombeaux, Tidelines, The Turn of the Screw (Miss Jessel), A Stranger's Taste (Dancer) and There Where She Loves (Five songs).
In May 2000 Sansom took Nijinsky's old role in a reconstruction at the Royal Opera House of the original Jeux.
[5] He retired, after 16 years with the Royal Ballet company, described at the time as "the company's most classical dancer... always reliable, always committed to his roles, he had a wider range than might be expected, taking the leads in almost all the old classics and in many ballets by Ashton, MacMillan, Bintley, Balanchine and Tetley.
[3] On film he may be seen in a Gala for Tchaikovsky (Anastasia: Pas de deux), Still life at the Penguin Café (Texan Kangeroo Rat) and The Prince of the Pagodas (The King of the East).