Here's a list of the astronauts involved in the Gemini program, grouped by mission:

Gemini 3 (March 23, 1965)

* Virgil "Gus" Grissom (Command Pilot)

* John Young (Pilot)

Gemini 4 (June 3-7, 1965)

* James McDivitt (Command Pilot)

* Edward White (Pilot) - First American spacewalk

Gemini 5 (August 21-29, 1965)

* L. Gordon Cooper (Command Pilot)

* Charles Conrad Jr. (Pilot)

Gemini 6 (December 15-16, 1965)

* Wally Schirra (Command Pilot)

* Thomas Stafford (Pilot)

Gemini 7 (December 4-18, 1965)

* Frank Borman (Command Pilot)

* James Lovell (Pilot)

Gemini 8 (March 16, 1966)

* Neil Armstrong (Command Pilot)

* David Scott (Pilot)

Gemini 9 (June 3-6, 1966)

* Thomas Stafford (Command Pilot)

* Eugene Cernan (Pilot)

Gemini 10 (July 18-21, 1966)

* John Young (Command Pilot)

* Michael Collins (Pilot)

Gemini 11 (September 12-15, 1966)

* Charles Conrad Jr. (Command Pilot)

* Richard Gordon Jr. (Pilot)

Gemini 12 (November 11-15, 1966)

* James Lovell (Command Pilot)

* Edwin "Buzz" Aldrin (Pilot)

Backup Crews:

Each mission had backup crews, who were ready to step in if necessary. Some backup crew members later flew on other missions, including Apollo.

Other astronauts involved in the Gemini program:

* Alan Shepard - Director of Flight Crew Operations

* Deke Slayton - Director of Flight Crew Operations

* Walter Schirra Jr. - Manager, Astronaut Office

* Donald Slayton - Chief of the Astronaut Office

* Elliot See - Astronaut

* Charles Bassett - Astronaut

This list includes all the astronauts who flew on the Gemini missions, along with key personnel involved in the program.