Here is my list:

ALL-TIME FAVORITE:

Thaao Penghlis

PRESENT:

ACTORS:

Peter Reckell
Matthew Ashford
Steve Blackwood
Bryan Dattilo

ACTRESSES:

Kristian Alfonso
Lauren Koslow
Melissa Reeves
Renee Jones
Alison Sweeney

PAST:

ACTORS:

Joe Mascalo
Jason Brooks
Roark Critchlow

ACTRESSES:

Eileen Davidson
Christie Clarke
Louise Sorel

Past
Patrick Muldon austin
Christie Clarke carrie
John Clarke mickey
Eileen Davidson Kristain
Mary Beth Evans Kayla
Steve Nichols patch
Michal Sabtino laurence
Crystall Chapell carly
Jason Brookes Peter Diemera

CURRENT:

Matthew Ashford (Jack)
Melissa Reeves (Jennifer)
Thaoo Penghlis (Tony)

PAST:
Stephen Nichols (ex-Steve)
Mary Beth Evans (ex-Kayla)
Richard Biggs (ex-Marcus)
Michael Easton (ex-Tanner)
Shannon Sturges (ex-Molly)
Robert Mailhouse (ex-Brian)
Leann Hunley (ex-Anna)
Charlotte Ross (ex-Eve)
Lisa Trusel (ex-Melissa)
Joe Gallison (ex-Neil)
Crystal Chappelle (ex-Carly)
Michael Sabatino (ex-Lawrence)
Staci Greason (ex-Isabella)
Wayne Northrop (ex-Roman)

Mark Valley : Jack
Jason Brooks: Peter
Kristie McDaniel: Sarah
Christie Clark: Carrie
Robert Kelker Kelly: Bo
Adam Caine: Edmund

Current:
Deride Hall : Marlena
Drake Hogestyn: John
Thaao Penglis : Tony
Kristian Alfonso :Hope
Peter Reckell :Bo
John Aniston :Victor
Melissa Reeves: Jennifer
Matthew Ashford :Jack
Bill Hayes oug
Susan Seaforth Hayes: Julie
Suzanne Roger:Maggie
Alison Sweeney: Sami
James Reynolds :Abe

Past:
Stephen Nichols : Steve Johnson
Mary Beth Evans : Kayla Brady Johnson
Micheal Weiss : Mike Horton
Patsy Pease : Kim Brady
Charles Shaughnessy : Shane Donovan
Joseph Mascolo : Stefano Dimera
Jane Elliot : Anjelica Curtis Devereaux
Richard Biggs : Marcus Hunter
Crystal Chappell : Carly Manning
Louise Sorel : Vivian Alamain
Arleen Sorkin : Calliope Jones
John De Lancie :Eugene Bradford
Lisa Trusel : Melissa Anderson
Andrew Massett :Larry Welch
Staci Greason : Isabella Tosecano Black
Wally Kurth : Justin Kiriakis
Ivan G'Vera : Ivan Marais
Eileen Davidson : Kristen Blake Dimera
Christie Clark : Carrie Brady
Jensen Ackle : Eric Brady
Wayne Northrop : Roman Brady
Leann Hunley : Anna Brady Dimera
George Jenesky :Nick Corelli
Charlotte Ross : Eve Donovan
Genie Francis : Diana Coville
Billy Hufsey :Emlio Ramirez
Lisa Howard : April Ramirez
Wortham Krimmer : Cal Winter
Micheal Sabatino :Lawrence Alamain
Micheal Easton : Tanner Scofield
Robert Mailhouse: Brain Scofield
Shannon Sturges: Molly Brinker

Alison Sweeny as "Sami"
Joseph Mascolo as "Stephano"
Arianne Zuker as "Nicole"

also, Steve Blackwood as "Bart"

My current faves:

Actors:
Thaao Penghlis
Drake Hogestyn
Peter Reckell
Matt Ashford
Steve Blackwood

Actresses:
Kristian Alfonso
Deidre Hall
Melissa Reeves

Past faves:

Actors:
Steven Nichols
Joe Mascolo
Michael Easton
Charles Shaunnessy

Actresses:
Mary Beth Evans
Patsy Pease
Staci Greason