Notable for her Young Artist Award nominated role as Lucy on the ABC sitcom The Middle, Peyton is also known for her childhood guest star roles on the Disney Channel's Jessie, CBS's How I Met Your Mother, and NBC's Parenthood.
When she was just four years old, she appeared in the romantic comedy movie The Backup Plan.
In early 2015, she began starring in the television series 40s and Failing.
She and her sister and fellow actress, Merit Leighton, were raised in Glendale, California.
She appears with Finola Hughes in the 2014 film Dance Off.