The First Hundred are the first colonists of Mars. They arrived on Mars in the second manned expedition to Mars in 2027, on the spaceship Ares. Among their members are some important figures that spawned entire ideological movements, political parties and shaped history. They are composed of 35 persons from the USA and 35 from the USSR, those being the major world powers at the launch of the Ares, the other 30 being from other countries. Names are listed below for 43 of them.

USA contingent

Seven named

• Frank Chalmers, head
• John Boone
• Phyllis Boyle
• Ann Clayborne
• Simon Frazier
• Spencer Jackson
• Sax Russell
• Janet Blyleven

USSR contingent

Nineteen named

• Maya Toitovna, head
• Arkady Bogdanov
• George Bregovic
• Nadia Cherneshevsky
• Tatiana Durova
• Ursula Kohl
• Vlad Taneev
• Marina Tokareva
• Sasha Yefremov
• Alexander Zhalin
• Yeli Zudov
• Dmitri
• Elena
• Evgenia
• Igor
• Ivana
• Tasha
• Vasili
• Yuri

Others, and belonging unknown

Seventeen named

• Hiroko Ai
• Mary Dunkel
• Michel Duval
• Roger Calkins
• Samantha Hoyle
• Rya Jimenez
• Edvard Perrin
• Andrea
• Bob
• Boris
• Ellen
• Gene
• Iwao
• Paul
• Raul
• Desmond "The Coyote" Hawkins, unofficial member