He gained notability for his role as Parker Rooney on the Disney Channel television show Liv and Maddie (2013–2017)[1] and the voice of Jin in the animated adventure film Abominable (2019)[2][3] and its follow-up Abominable and the Invisible City (2022–2023).

[8] His maternal grandfather is Tenzing Norgay, who, together with Edmund Hillary, was the first to climb Mount Everest.

[14] In 2018, Trainor was cast as Jimbo, a boy completely lost in modern-day society, in two episodes of the Nickelodeon series Knight Squad.

[16] In the animated feature film Abominable, he voiced the character of Jin who, similar to Tenzing Norgay, climbs Mount Everest to bring back a Yeti to his family.

[17] In 2022, he appeard as Gavin, a member of "The Afterlifers", in the Netflix series Boo, Bitch with Lana Condor and Zoe Colletti.