On November 18, 2004, Mc Cool debuted on Smack Down!
In October, Mc Cool was legitimately hospitalized for over eight days after suffering a bad reaction to Ibuprofen after a CT scan.
On January 19, 2006, Trenesha Biggers and Angel Williams attacked Kristal Marshall during the intermission, but Tracy Tailor and Mc Cool made the save, and brawled with Biggers and Williams.
On May 5, Roadkill and James, with Mc Cool at ringside, lost a dark match on Smack Down against William Regal and Sylvan. on June 2, 2006, this time as a villainous character with a "sexy teacher" gimmick, pulling on her real life experiences as a teacher, and warning the Divas that she was "gonna take them to school".
On June 9, Mc Cool, Jillian Hall, Kristal and Ashley participated in a "Bikini Contest", which Massaro won.
On January 6, Mc Cool participated in her first in-ring segment during the John Cena vs. Mc Cool caught the eye of Suzuki, resulting in Hiroko attacking Mc Cool.
On January 10, Mc Cool, Miss Jackie, Torrie Wilson and Dawn Marie participated in a "Miss Smack Down! Mc Cool, Miss Jackie, Torrie Wilson, Dawn Marie, Joy Giovanni, Rochelle Loewen and Lauren Jones participated in a "Best Body Contest" on February 21, 2005, which was again won by Wilson.
On November 25, Mc Cool helped Miss Jackie stretch and discussed the rumors of Charlie Haas cheating on her.
On December 2, Mc Cool helped Booker T and Eddie Guerrero stretch and sort out their "negative vibes".
Mc Cool and Kristal had a catfight backstage with Jillian Hall and Ashley on July 14, which prompted a feud between the four Divas.
On July 15, Mc Cool and Victoria reached the finals of a Divas Mechanical Bull Riding Contest, which Mc Cool won.
In her initial on-screen role, she acted primarily as a personal trainer and occasional wrestler. At The Great American Bash in 2008, Mc Cool became the inaugural WWE Divas Champion, holding the title for approximately five months.