Hari
Kris Kelvin
Dr. Snaut
Henri Berton
Kelvin's Father
Dr. Sartorius
Kelvin's Mother
Henri Berton's Son
Guest of Dr. Gibarian
Kris Kelvin's Niece
Shanahan, Chairman of the Anri Berton Commission
Professor Tarkhe
Anna
Dr. Gibarian
Chairman of the Scientific Conference
Member of the Academic Council
Prof. Messenger