Daniel Dae Kim in 'Butterfly' and Jensen Ackles in 'Countdown' Juhan Noh/Prime; Elizabeth Morris/Prime Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text Prime Video has canceled a pair of first-year series, Butterfly and Countdown. The Amazon MGM Studios series had summer debuts and each spent a short time on Nielsen's top 10 U.S. streaming charts, but neither will return for a second run. The cancellation of Butterfly, starring Daniel Dae Kim, comes about two months after it premiered as a binge release. Countdown, led by Jensen Ackles, premiered in June and had a longer rollout, wrapping its 13-episode season in early September. Butterfly, based on a graphic novel by Arash Amel and Marguerite Bennett, is a spy thriller that stars Kim as a former U.S. intelligence agent who comes out of hiding in South Korea to help his daughter (Reina Hardesty), who's also a spy. The show spent two weeks on the Nielsen streaming charts following its Aug. 13 premiere. Related Stories TV Aldis Hodge Is Back on the Hunt in Season 2 'Cross' Teaser TV How to Watch 'Thursday Night Football' Without Cable Countdown, from Chicago Fire co-creator Derek Haas, stars Ackles as an LAPD detective who's brought into a task force involving several agencies that's working against time to stop a potentially devastating conspiracy. Jessica Camacho, Eric Dane, Violett Beane, Uli Latukefu and Elliot Knight also star. Like Butterfly, Countdown had a two-week run on the Nielsen streaming charts shortly after its premiere. It didn't keep up that momentum as the season continued, however. Kim (via his 3AD company) and Ackles (through his Chaos Machine banner) both have first-look deals at Amazon MGM Studios. Ackles stars in the forthcoming Vought Rising, a prequel to The Boys. Deadline first reported the cancellations. THR Newsletters Sign up for THR news straight to your inbox every day Subscribe Sign Up streaming How to Watch NFL London Game: Denver Broncos vs. New York Jets Live Online Without Cable for Free streaming NFL on Sling TV: Here's How to Watch Seattle Seahawks vs. Jacksonville Jaguars Live Online Without Cable Live Feed Peacock's 'All Her Fault' Trailer Puts Sarah Snook Through the Wringer The Real Housewives 'Real Housewives of Potomac' Star Wendy Osefo, Husband Eddie, Arrested on Fraud Charges MIPCOM MIPCOM: Anna Kendrick, J.K. Simmons Join Thriller Series 'Embassy' Live Feed 'Survivor' Player Jake Latimer on Being Medically Evacuated From the Show and Worrying, "Am I Going to Be the First Contestant to Die?" streaming How to Watch NFL London Game: Denver Broncos vs. New York Jets Live Online Without Cable for Free streaming NFL on Sling TV: Here's How to Watch Seattle Seahawks vs. Jacksonville Jaguars Live Online Without Cable Live Feed Peacock's 'All Her Fault' Trailer Puts Sarah Snook Through the Wringer The Real Housewives 'Real Housewives of Potomac' Star Wendy Osefo, Husband Eddie, Arrested on Fraud Charges MIPCOM MIPCOM: Anna Kendrick, J.K. Simmons Join Thriller Series 'Embassy' Live Feed 'Survivor' Player Jake Latimer on Being Medically Evacuated From the Show and Worrying, "Am I Going to Be the First Contestant to Die?"