The Amazon Prime Video TV adaptation of “The Probability of Miracles” has added two new cast members. Variety has learned exclusively that Brian Tee and Ben Feldman are both set to appear in the series, which is based on the Wendy Wunder novel of the same name.

Production on the series is now underway in Vancouver, with the series having been ordered at Prime Video in December 2025. Previously announced cast members include Melissa Collazo, Henry Eikenberry, Ginnifer Goodwin, Michaela Watkins, Georgia Acken, and Ema Inês.

“The series follows Campbell Cooper (Collazo), an acerbic teenager dying of cancer who, after receiving a terminal diagnosis, moves with her mom (Goodwin) and younger sister to the town of Promise, where miracles are said to happen. Cam, however, doesn’t believe in miracles. How could she when science says she’s definitely going to die? But as she spends her summer in this quirky, mystical town, she discovers that miracles – and falling in love – are still possible, no matter how improbable they may seem.

Tee will appear in a recurring role as Izzie, described as “a grounded, passionate, yet soft-spoken head chef and boyfriend to Alicia (Goodwin).” Feldman will guest star as Dr. Handsome, said to be “Cam’s noticeably good-looking oncologist.”

Tee previously starred in Season 3 of “Reacher” at Amazon and also played a major role in the Amazon series “Expats” opposite Nicole Kidman. His best known TV role came when he starred in the first eight seasons of the hit NBC drama “Chicago Med” as Dr. Ethan Choi. In film, he is known for his roles in features including “A House of Dynamite,” “The Fast & The Furious: Tokyo Drift,” “The Wolverine,” and “Teenage Mutant Ninja Turtles: Out of the Shadows.”

He is repped by Verve, Authentic, and Behr Abramson Levy Johnson.

Feldman is best known for his starring role in the popular NBC comedy “Superstore,” on which he starred for six seasons. He was recently promoted to series regular status in the CBS ensemble comedy “Ghosts” for that show’s sixth season. Feldman also appeared in the hit AMC series “Mad Men,” for which he earned an Emmy nomination in 2012. His other TV roles include “Silicon Valley,” “Population 11,” and “Mayfair Witches.” He has been in films like “Cloverfield” and 2009’s “Friday the 13th.”

He is repped by Impression Entertainment, IAG and Hansen Jacobson.

Katie Lovejoy seres as writer, executive producer, and co-showrunner on “The Probability of Miracles.” Rina Mimoun is also executive producer and co-showrunner. Alloy Entertainment’s Leslie Morgenstein is also an executive producer, alongside Laura Lancaster. Ella Jones will direct and executive produce the first episode. Alloy Entertainment will produce in association with Warner Bros. Television, where Mimoun is under an overall deal.