Jackie Joyner-Kersee (Xavier Riddle and the Secret Museum)

"Um, I'm Pretty sure this is Not a Girl, Wait a Minute, It is a Girl, Miss BG really wants to feel her right now".

--Su Ji-Hoon, The Museum Invaders

Jacqueline Joyner-Kersee (born March 3, 1962) is a retired American track and field athlete, ranked among the all-time greatest athletes in the heptathlon as well as long jump. She won three gold, one silver, and two bronze Olympic medals in those two events at four different Olympic Games. Sports Illustrated for Women magazine voted Joyner-Kersee the Greatest Female Athlete of All-Time. She is on the board of directors for USA Track & Field (U.S.A.T.F.), the national governing body of the sport.

She is the first hero on the series that is still alive.

in When the Cold Breeze Blows Away, after her retirement of being an Athlete, she becomes a Soldier, She also died on suicide bombing while fighting against US soldiers.

Jackie also had a crush on Lincoln Loud.