No, she didn't.
alot of guest stars were in big time rush
Yes, She appeared on Frasier as supermodel/zoologist Kelly Easterbrook in the fifth season opener ("Frasier's Imaginary Friend"). source: wikipedia
Camille Grammer made a guest appearance in one episode of Frasier - the 1997 Halloween episode called Eve.
Victor Garber was indeed a guest star on Frasier in the episode titled 'Taking Liberties' (Season 8, Episode 4). He played an English butler named Ferguson who is employed by Dr. Frasier Crane after his previous employer dies. Victor was nominated for Outstanding Guest Actor in a Comedy Series at the 2001 Emmy Awards as a result of his performance in this episode.
there has to be some guest stars on that season finale
The Brentwood Hotel averages between 3.6 stars and 4 stars from guest reviews. The average guest has only the highest compliments for the hotel and gives it rave reviews.
Season 2, episode 6: The Botched Language Of Cranes.
Bill Gates was a special guest star.
Marty was featured in every episode of Frasier.
Yes, she played Dr Honey Snow in two episodes.