McKeon starred on
Saved by the Bell: The New Class, playing Katie Peterson, debuting with the series' fourth season in 1996 and continuing until the series ended in 2000. She joined the CBS daytime soap opera
Guiding Light in November 2001, playing the character of Marah Lewis until 2004. In a June 2002
Victoria Advocate article, McKeon said of her character, Marah, "She could definitely make some smarter choices where men are concerned, but couldn't we all?" and "I just hope she's learned as much as I have after going through all of this." McKeon has appeared as a series regular in
Fox's
The Opposite Sex and had a recurring role on
Boy Meets World. Additional television credits include the lead in
Class Warfare, a
USA Network movie-of-the-week, and episodes of ''
It's Always Sunny in Philadelphia, Grounded for Life, Maybe It's Me, Special Unit 2, 3rd Rock from the Sun, House, and Odd Man Out''. She also made guest appearances on the shows
Supernatural and
Veronica Mars, and on
One Tree Hill as Taylor James, the sister of
Haley James Scott played by fellow
Guiding Light alumnus Bethany Joy Galeotti. Her film credits include
Shredder and
Class Warfare. ==Personal life==