McGill was born in Atlanta to former Indianapolis Colts and New York Jets player Curt McGill and NCAA tennis champion Kelly Baskin McGill. She revealed it was Indiana Jones that got her inspired to be an actress. She is an avid athlete herself excelling at tennis and volleyball playing regional and national level in both. McGill also takes part in comedy with an improv groupe based throughout the southeast.
While McGill hopes to continues her acting career, she said she hopes to play tennis at her future university. She has also mentioned her interest interest in working in the medical field as a doctor or veterinarian.