Haise was the lunar module pilot of the Apollo 13 mission.
john L. Swigert Jr.
Swigert was the command module pilot of the Apollo 13 mission.
honorable mentions
Glynn Lunney
Gene Kranz
Glynn Lunney played a key role in the Apollo 13 crisis.He was one of the flight directors in charge of the Apollo 13 mission. Lunney and his team were faced the problem of having to power up the lunar module on a really tight time frame, while also worrying about transferring the guidance and navigation data into it. His excellent memory and quick thinking allowed him and his to succeed during these unsure hours.
Gene Kranz was the lead flight director of the Apollo 13 mission. He also lead a team around the clock to rescue the crew on the Apollo 13 spacecraft and bring the trio back to Earth safely.