Milana Aleksandrovna Vayntrub (/ˈvaɪntruːb/ VYNE-troob, Russian: Милана Александровна Вайнтруб; born March 8, 1987) is an American actress, comedian, and activist. She began her career as a child actress and came to prominence for her appearances in AT&T television commercials as saleswoman Lily Adams from 2013 to 2016 and since 2020. In addition to her commercial appearances, she was a series regular on the Yahoo! Screen science fiction comedy Other Space (2015) and had a recurring role on the NBC drama This Is Us (2016–2017). Vayntrub has also voiced Squirrel Girl in the Marvel Rising franchise since 2018 after being cast as the character in the unaired television pilot for New Warriors, and later in the 2024 video game Marvel Rivals.