She achieved further recognition and plaudits as Dakota in the sixth season of horror drama series Fear the Walking Dead (2020–2021) and the Truth Pixie in fantasy film A Boy Called Christmas (2021).
[7] She played the lead role of Stella Nicholls in horror film Scary Stories to Tell in the Dark (2019), based on the children's books of the same name.
[5] In December 2019, Colletti reportedly joined the cast of the sixth season of AMC's Fear the Walking Dead as a series regular (later revealed to be Dakota).
Despite a lack of success in World Beyond, the audition gave her connections with other shows in the franchise, and casting directors offered her the role in Fear the Walking Dead.
[5] In August of that year, she was cast as Gia, the best friend of Erika (Lana Condor), in Netflix comedy series Boo, Bitch.