Alison

Alison Parker (Armstrong) Courteney Thorne-Smith
Alison is one of the few characters who has been in the building since the beginning. She didn't last till the end, though. Alison was one of the "good" characters. Come to think of it, she was the only nice one in the building apart from Jake. Alison and Billy were like the Romeo and Juliet of Melrose Place - the perfect couple. Sadly, they never married, because he married Brooke. And later on, Alison married Brooke's father, Hayley Armstrong.
Alison actually went blind for a while, after Melrose Place had been bombed by Kimberley. She also had a drinking problem.

Amanda

Amanda Woodward (Parezi McBride Burns) Heather Locklear

Brooke

Brooke Armstrong (Campbell) Kristin Davis

Eve Cleary (Burns)

Jane Andrews (Mancini)

Jennifer Mancini

Jo Reynolds

Kimberley (Mancini)

Megan (Mancini McBride)

Lexi Sterling

Rhonda

Samantha Reilly (Campbell)

Sandy

Sydney Andrews (Field)

Taylor McBride

Billy Campbell

Dr Brett "Coop" Cooper

Jake Hansen

Kyle McBride

Matt Fielding

Michael Mancini

Dr Peter Burns

Richard Hart

Ryan McBride