Angelina Karo was born on June 26, 2011, in San Francisco, California. At the age of 6, she began her theatrical studies and participated in a musical and workshops at Performing Arts Academy of Marin. At the age of 8, Angelina started A.C.T. Young Conservatory by taking Acting Funny/Improv class and auditioning for A Christmas Carol. She studied acting at Lisa Picotte's Young Actors Studio in Hollywood, focusing on Improv. At the age of 8, she made her first short film, Dolly, where she starred as a Dolly. Many projects followed where she continued her film career in short films, feature films, music videos, and commercials.