Trish debuted for the then-named World Wrestling Federation as the heel valet for Test and Albert (T & A) on March 19, 2000. Within months, she was put in the ring and feuded with Divas such as Molly Holly and Lita. By the end of the year and entering 2001, Trish portrayed the on-screen mistress of Vince McMahon, and was in a feud with fellow villainess Stephanie McMahon. Vince later turned against Trish and attempted to humiliate her, which resulted in a babyface turn for Trish at WrestleMania X-Seven.
After almost three years as a fan favorite, Trish turned into a villainess at WrestleMania XX on March 14, 2004; by betraying Chris Jericho and dumping him for his rival, Christian. The couple spent weeks tormenting Jericho before they were defeated by him at Backlash. At the final Bad Blood PPV, the villainous Trish won her fifth Women's Championship and later reignited her feud with Lita by constantly tormenting her over her relationship with Kane. The two finally faced each other at Survivor Series on November 14, but it would end with Trish being levelled with a steel chair by Lita. A few weeks later, Trish lost the Women's Championship to Lita in a main event match on Raw, but she regained the title at the inaugural New Year's Revolution PPV on January 9, 2005.
Trish later targeted Christy Hemme during the unveiling of her Playboy cover; even going as far as spray-painting the word "SLUT" on her back. Trish went on to defeat Christy at WrestleMania 21, but she would be taken out by Viscera at Backlash weeks later. It was at that point that Trish's second run as a villainess ended; she returned in September as a babyface.
As a villainess, Trish was seductive, catty, and quite egomaniacal. She also expressed jealousy of certain Divas at times. As a blonde (her natural hair color is brown), she also bore a resemblance to Baywatch actress Pamela Anderson.
- Trish Stratus later appeared as the villainous Gina in the 2015 film, Gridlocked.