At age 13, she began her acting career by working as an amateur reporter for a local Bethesda UPN station.
In late 1998, Kristina won the Miss Maryland Teen USA 1999 title and prepared to compete in the Miss Teen USA pageant, until she was offered the role on As the World Turns, which was to begin filming the week of the pageant.
In January 1999, Sisco landed the role of Abigail Williams on CBS's daytime drama As the World Turns.
[3] Kristina Romero has published three books Calling Extra, a historical novel for young readers, The Revenue Relationship, a non-fiction business book, and The Beatitudes and Francis of Assisi, a small group and personal Bible study.
[5] In 2006, Kristina completed a Bachelor of Arts degree in psychology from Thomas Edison State College and was inducted into the Alpha Sigma Lambda national honor society.