‘Quantum Leap’ Episode 18 Photos, Cast, and Season Finale Promo

Season one of NBC’s popular primetime sci-fi drama Quantum Leap comes to an end with episode 18, “Judgment Day.” Episode 18 will air on Monday, April 3, 2023 at 10pm ET/PT.

Season one stars Raymond Lee (Kevin Can F**k Himself) as physicist Ben Song and Caitlin Bassett as Addison. Ernie Hudson (The Family Business) plays Herbert “Magic” Williams, Mason Alexander Park (The Sandman) is Ian Wright, and Nanrisa Lee (First Love) plays Jenn Chou.

“Judgment Day” Plot: Ben’s final leap of the season takes him closer to home than he ever expected. The team faces the ultimate showdown with Leaper X as they battle for the future of the Quantum Leap project and their lives.

Quantum Leap Episode 18
Raymond Lee as Dr. Ben Song in ‘Quantum Leap’ episode 18 (Photo by: Trae Patton/NBC)

Season One Synopsis:

It’s been nearly 30 years since Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished. Now, a new team, led by physicist Ben Song (Lee), has been assembled to restart the project in hope of understanding the mysteries behind the machine and the man who created it.

Everything changes, however, when Ben makes an unauthorized leap into the past, leaving the team behind to solve the mystery of why he did it. At Ben’s side throughout his leaps is Addison (Bassett), who appears in the form of a hologram only Ben can see and hear. She’s a decorated Army veteran who brings level-headed precision to her job.

At the helm of the highly confidential operation is Herbert “Magic” Williams (Hudson), a no-nonsense career military man who has to answer to his bosses who won’t be happy once they learn about the breach of protocol. The rest of the team at headquarters includes Ian Wright (Park), who runs the Artificial Intelligence unit “Ziggy,” and Jenn Chou (Lee), who heads up digital security for the project.

As Ben leaps from life to life, putting right what once went wrong, it becomes clear that he and the team are on a thrilling journey. However, Addison, Magic, Ian and Jenn know that if they are going to solve the mystery of Ben’s leap and bring him home, they must act fast or lose him forever.

Quantum Leap Episode 18
Raymond Lee as Dr. Ben Song and Mason Alexander Park as Ian in episode 18 (Photo by: Trae Patton/NBC)
Quantum Leap Episode 18
Raymond Lee as Dr. Ben Song in the season 1 finale (Photo by: Trae Patton/NBC)
Quantum Leap Episode 18
Mason Alexander Park as Ian in season 1 episode 18 (Photo by: Trae Patton/NBC)
Quantum Leap Episode 18
Raymond Lee as Dr. Ben Song in episode 18 (Photo by: Trae Patton/NBC)
Quantum Leap Episode 18
Raymond Lee as Dr. Ben Song in episode 18 (Photo by: Trae Patton/NBC)
Quantum Leap Episode 18
Mason Alexander Park as Ian in the season finale (Photo by: Trae Patton/NBC)