I don't know much about Tricia O'Kelley. All I know is that she was once a guest star on Malcolm in the Middle. She was really hot as Ms. Welsh. To be honest, she was just an okay actress and nothing more in terms of acting. I do have to say that I don't think she has been in too many films from what I understand. She was probably the best guest character on the show for a couple of episodes. Overall, I think she was pretty good in playing a skittish teacher trying to control the weird students. So it was fine. Thank you.