Ivor Forbes Guest DUniv MA FRAD was a British historian and writer, best known for his study of ballet. He was chairman of the Royal Academy of Dance for twenty three years (1970–93) and has been a Vice-President since 1993 and Secretary then Trustee of the Radcliffe Trust. In 1997 he was made a Doctor of the University by the University of Surrey, its highest honorary doctorate.

Ann Hutchinson Guest was an American authority on dance notation and movement analysis, long based in the United Kingdom. She studied more than 80 dance notation systems and translated 20 to Labanotation. This gave her access to a number of dance works in their original version – such as Vaslav Nijinsky's L'Après-midi d'un Faune. Her extensive research, performing, and teaching career led her to establish the "Language of Dance" approach to empower educators, artists, researchers, and other professionals in their study and use of Motif notation to engage and deepen movement understanding.