Harley Quinn Smith was born on June 26, 1999 in Red Bank, New Jersey. She is the daughter of director Kevin Smith and his wife, Jennifer Schwalbach-Smith.

Named after Harley Quinn, her name reflects her father's love of comics. From first-hand accounts by her father, she is every bit as feisty as Harley Quinn herself.

She has come a long way since her debut as a 7-pound 8-ounce newborn. She will make her film debut on August 24 2001 in her father's newest movie, Jay and Silent Bob Strike Back.