Sam leaping
Alia leaping
A Leaper is a person who leaps in his or her own lifetime into other people. There are only two known good leapers, Sam and Alia (she was evil first but thanks to Sam, she is good now). But later, also Zoey became a leaper, but evil.
With the revival of the Quantum Leap Project in 2022, another three leapers have been added: Ben Song (good), Richard Martinez aka Leaper X (appears evil), and Ian Wright (good) who leaped to the past to convince Ben to make an unauthorized leap.