Zoo is an American drama television series based on the 2012 novel of the same name by James Patterson and Michael Ledwidge, the former also serving as an executive producer for the series, which stars James Wolk, Kristen Connolly, Nonso Anozie, Nora Arnezeder and Billy Burke as a group of varied professionals who investigate a mysterious outbreak of violent animal attacks upon humans all over the world.

Jackson Oz, an American zoologist and his Kenyan friend, Abraham Kenyatta, a safari guide, as well as Jamie Campbell, a Los Angeles reporter, Mitch Morgan, a quirky veterinary pathologist, and a French intelligence agent, Chloe Tousignant, all seek to investigate the mysterious pandemic as the attacks become more coordinated and ferocious.

[18] In March, 2016, Josh Salatin and Alyssa Diaz were added to the cast as series regulars in the second season.

[20] In December 2016, Gracie Dzienny, who guest-starred in the second-season finale, was promoted to series regular for the third season.

[21] In February, Athena Karkanis, Hilary Jardine, and Sophina Brown were cast in recurring roles.