can be from scripted TV shows and movies, no reality/unscripted. Just list what you like them in.

Kelsey Grammer- Frasier, A Christmas Carol (my all-time favorite movie), Mr. St. Nick, Cheers, Back to You, Swing Vote, Wings guest appearance
John Cleese- Fawlty Towers
Kyle Chandler- Early Edition (my all-time favorite show)
all the cast of Corner Gas
Paul Reiser- Mad About You, My Two Dads
Anthony LaPaglia- Without a Trace, Frasier
Emma Stone- La La Land, The Help
Robert Guillaume- Benson, Diagnosis Murder guest star on the pilot
Tony Shalhoub- Monk, Wings, BrainDead, Paulie
Julia Roberts- Runaway Bride, My Best Friend's Wedding, The Pelican Brief, Stepmom, Law and Order guest appearance
Jerry Orbach- Law and Order, Dirty Dancing, Law and Order: Trial by Jury
Bebe Neuwirth- Frasier, Cheers, Wings guest appearance, Law and Order: Trial by Jury, Blue Bloods
Brent Spiner- Star Trek: the Next Generation, Frasier guest appearance
David Hyde Pierce- Frasier, Sleepless in Seattle
Tom Hanks- Sleepless in Seattle, You've Got Mail, Family Ties appearances
Michael J. Fox- Family Ties, Back to the Future trilogy
Jonathan Taylor Thomas- Home Improvement, I'll Be Home for Christmas
Tim Allen- Home Improvement- The Santa Clause movies, The Shaggy Dog
Nigel Hawthorne- Yes, Minister/Yes, Prime Minister
Robin Williams- Jumanji, Mork and Mindy, August Rush, Dead Poets Society
Joanna Garcia Swisher- Privileged, Reba, Kevin (Probably) Saves the World, Once Upon a Time, Better with You, Animal Practice
Jane Leeves- Frasier, Murphy Brown, Seinfeld appearances
Jason Alexander- Seinfeld, A Christmas Carol
Jesse L. Martin- Law and Order, A Christmas Carol
Sam Waterston- Law and Order
more to come

Mary Tyler Moore- The Mary Tyler Moore Show, The Dick Van Dyke Show
Dick Van Dyke- Diagnosis Murder, The Dick Van Dyke Show, Mary Poppins, The Middle guest appearance
John Travolta- Grease, Welcome Back Kotter
Jerry Van Dyke- Coach, The Middle, Diagnosis Murder guest appearance
Craig T. Nelson- Coach, Monk, The District
Stephen Collins- 7th Heaven, No Ordinary Family
Peter Graves- 7th Heaven, Airplane!
Leslie Nielsen- Airplane!
Roma Downey- Touched by an Angel, The Bible/A.D. The Bible Continues
Kirk Cameron- Left Behind movies, Fireproof, Growing Pains
Howard Hesseman- WKRP in Cincinnati
Gavin McLeod- The Love Boat, The Mary Tyler Moore Show
Ted Knight- Too Close for Comfort, The Mary Tyler Moore Show
Ed Asner- Lou Grant, The Mary Tyler Moore Show
Erin Moran- Happy Days, The Waltons guest appearance
Harry Morgan- M*A*S*H, Dragnet, The Cat from Outer Space
William Daniels- Boy Meets World, 1776
Steve Martin- Father of the Bride movies, Cheaper by the Dozen movies, The Pink Panther movies
Peter Falk- Columbo, The Princess Bride
Fred Savage- The Wonder Years, The Princess Bride
Kiefer Sutherland- Designated Survivor, Touch, A Few Good Men
Kevin Bacon- Footloose, A Few Good Men
Marion Ross- Happy Days, Gilmore Girls
Alexis Bledel- Gilmore Girls
Lauren Graham- Gilmore Girls, The Pacifier
Emily Bishop- Gilmore Girls, Dirty Dancing
Scott Cohen- Gilmore Girls, Necessary Roughness, Law and Order: Trial by Jury
Henry Winkler- Happy Days
Tom Bosley- Happy Days
Morgan York- The Pacifier, Cheaper by the Dozen movies
Patricia Heaton- The Middle, Back to You, Everybody Loves Raymond
Bonnie Hunt- Jumanji, Cheaper by the Dozen movies, Life With Bonnie, Beethoven movies
David Alan Grier- DAG, Jumanji, Life With Bonnie
Delta Burke- DAG, Touched by an Angel guest appearance
Dylan McDermott- Hostages, The Practice
Amber Marshall- Heartland
Bob Newhart- Newhart, Elf
John Ritter- 8 Simple Rules for Dating my Teenage Daughter, The Waltons, Touched by an Angel guest appearance, Wings guest appearance
Faith Ford- Hope and Faith, Murphy Brown, The Pacifier
Jimmy Stewart- It's a Wonderful Life, Rear Window
Donna Reed- It's a Wonderful Life
Lionel Barrymore- It's a Wonderful Life
Britt Robertson- Life Unexpected, Under the Dome
Mike Vogel- Under the Dome
all the cast of I Love Lucy/The Lucy-Desi Comedy Hour
Lana Perilla- Once Upon a Time
Robert Carlyle- Once Upon a Time
John Mahoney- Frasier
Peri Gilpin- Frasier, Scorpion appearances, Wings guest appearance
Elyes Gabel- Scorpion
Katharine McPhee- Scorpion
Audrey Hepburn- Breakfast at Tiffanys, Wait Until Dark, Charade
Julie Andrews- The Sound of Music, Mary Poppins
Christopher Plummer- The Sound of Music
Victor Garber- Justice, The Music Man, Frasier guest appearance
Beverley Mitchell- 7th Heaven
George Stults- 7th Heaven
Catherine Hicks- 7th Heaven
Richard Lewis- 7th Heaven
Thomas Haden Church- Wings
Crystal Bernard- Wings
Rebecca Schull- Wings
Poppy Montgomery- Without a Trace
David Duchovny- The X-Files, Return to Me
Gillian Anderson- The X-Files
Jake McDorman- Limitless. Brian Finch made the TV show a lot better than the movie.
Neal Flynn- The Middle
Atticus Shaffer- The Middle
Eden Sher- The Middle
Patrick Stewart- Star Trek: the Next Generation
Jonathan Frakes- Star Trek: the Next Generation
Kellie Martin- Christy
Della Reese- Touched by an Angel
Gordon Jump- WKRP in Cincinnati
Jan Smithers- WKRP in Cincinnati
Steve Landesburg- Barney Miller
Abe Vigoda- Barney Miller
Hal Linden- Barney Miller, Touched by an Angel guest appearance
Jack Soo- Barney Miller, The Jack Benny Program guest appearance, M*A*S*H guest appearances
Alan Alda- M*A*S*H
Larry Linville- M*A*S*H
Loretta Swit- M*A*S*H
David Ogden Stiers- M*A*S*H, Frasier guest appearance
Mike Farrell- M*A*S*H
Jamie Farr- M*A*S*H
Ron Pallilo- Welcome Back, Kotter
Don Knotts- The Andy Griffith Show
Ellen Corby- The Waltons, Alfred Hitchcock and Twilight Zone guest appearances
Richard Thomas- The Waltons
Michael Lerned- The Waltons
Ralph Waite- The Waltons
Richard Geer- The Waltons
Kami Cotler- The Waltons
Mary McDonough- The Waltons
Michael Landon- Highway to Heaven
Farrah Fawcett- Charlie's Angels
Susan Dey- The Partridge Family
Lori Singer- Fame, Footloose
Emily Wickersham- NCIS
Donnie Wahlberg- Blue Bloods
Tom Selleck- Blue Bloods
Avery Brooks- Star Trek: Deep Space Nine
Kate Mulgrew- Star Trek: Voyager, Cheers arc
Jeri Ryan- Star Trek: Voyager, Leverage
the main cast of Leverage
Kimberly Williams-Paisley- Father of the Bride movies, According to Jim
James Cromwell- Babe
Robert Picardo- Star Trek: Voyager
Tim Daly- Wings
Larry Hagman- I Dream of Jeannie
Barbara Eden- I Dream of Jeannie, Andy Griffith guest appearance, George Lopez guest appearance, Sabrina the Teenage Witch appearances
Hayden Rorke- I Dream of Jeannie
Masiela Lusha- George Lopez
Elizabeth Montgomery- Bewitched
Dick York- Bewitched, Alfred Hitchcock and Twilight Zone appearances
Agnes Moorehead- Bewitched
Justine Bateman- Family Ties
Tina Yothers- Family Ties
Tracy Pollan- Family Ties
Meredith Baxter- Family Ties
Michael Gross- Family Ties
James Noble- Benson
Missy Gold- Benson
Rene Auberjonois- Benson, Star Trek: Deep Space Nine
Natalie Wood- Miracle on 34th Street, West Side Story
Maureen O'Hara- Miracle on 34th Street
Olivia Newton-John- Grease
Barry Van Dyke- Diagnosis Murder
Charlie Schlatter- Diagnosis Murder
Tom Poston- Newhart, Mork and Mindy, Home Improvement appearances
Patricia Richardson- Home Improvement
Earl Hindman- Home Improvement, Law and Order guest appearance
Andrew Sachs- Fawlty Towers
Patty Duke- The Patty Duke Show, The Miracle Worker
Pam Dawber- Mork and Mindy
Angie Harmon- Law and Order
Tracy Wells- Mr. Belvedere
Christopher Hewett- Mr. Belvedere
Brice Beckham- Mr. Belvedere

Some of mine:

--Raymond Burr, Barbara Hale, William Hopper: Perry Mason

--Lee Marvin: M Squad

--Hal Linden: Barney Miller

--Bob Newhart: The Bob Newhart Show

--Robert Wagner, Stefanie Powers, Lionel Stander: Hart to Hart

--Joey King: Ramona and Beezus, White House Down, Wish I Was Here, Wish Upon

--Barry Newman: Petrocelli

--Steve McQueen: Wanted: Dead or Alive

--Richard Boone: Have Gun, Will Travel

TV Actors:
Kelsey Grammer
Kyle Chandler
Timothy Oliphant
Walton Goggins

TV Actresses:
Gillian Anderson
Jane Levy
Olivia Wilde
Anna Gunn

Classic Hollywood Actors
James Cagney
Spencer Tracy
Cary Grant
James Stewart
William Powell

Classic Hollywood Actresses
Lillian Gish
Carole Lombard
Barbara Stanwyck
Marlene Dietrich
Judy Garland

The entire cast of Night Court

The entire Brady Bunch cast

Ryan Gosling

Ryan Reynolds

Joseph Gordon Levitt

Catherine O'Hara

My favorite sitcom actors/actresses are the following,
1. Kelsey Grammer
2. Alan Thicke
3. French Stewart
4. Jason Bateman
5. David Spade
6. Yvette Nicole Brown
7. Constance Marie
8. Fran Drescher
9. Roseanne
10. Ed O'Neill
11. Ellen DeGeneres
12. Ty Burrell
Bestie

My favorite sitcom actors/actresses are the following,
1. Kelsey Grammer
2. Alan Thicke
3. French Stewart
4. Jason Bateman
5. David Spade
6. Yvette Nicole Brown
7. Constance Marie
8. Fran Drescher
9. Roseanne
10. Ed O'Neill
11. Ellen DeGeneres
12. Ty Burrell
Bestie

Great choices! I like some of those people too.

Add another one to mine: Pamela Sue Martin, especially of Dynasty (she was, hands-down, the better Fallon Colby than Emma Samms).

Judy Dench

current
Hayley Atwell -marvels Agent carter
Clark Gregg form marvels Agents of sheild
Stephen Amell Arrow
Danielle Panabaker & Grant Gustin in the flash


classic actors
lucy ball i love lucy
jackie gleason the honeymooners
micheal j fox form family ties
red fox sanford & son
fred savage form the wonder years
ben savage & danielle fisher form boy meets world
Jaleel White as Steve Urkel from family matters
Christine Lakin form step by step
tiffany amber thiessen saved by the bell


other shows
tom welling smallville
seven days Jonathan LaPaglia
kyle chandler early edition
Scott Bakula as sam beckett form quantum leap
the incredible hulk Bill Bixby & Lou Ferrigno

Some of mine:

--Raymond Burr, Barbara Hale, William Hopper: Perry Mason

--Lee Marvin: M Squad

--Hal Linden: Barney Miller

--Bob Newhart: The Bob Newhart Show

--Robert Wagner, Stefanie Powers, Lionel Stander: Hart to Hart

--Joey King: Ramona and Beezus, White House Down, Wish I Was Here, Wish Upon

--Barry Newman: Petrocelli

--Steve McQueen: Wanted: Dead or AliveAnyone

--Richard Boone: Have Gun, Will Travel

Have to agree with you about Burr, but i'd also add...
Dana Delany and Marg Helgenberger- China Beach

Ed Begley, Jr, Christina Pickles, Cynthia Sikes- St. Elsewhere

Heidi Noelle Lenhart and Kelly Packard- California Dreams

Carolee Campbell and Jada Rowland- The Doctors

Lauren White- The Doctors

Victoria Wyndham- Another World

Jennifer Houlton- The Doctors

Patricia Wettig- Thirtysomething

Dolly Parton
Angela Lansbury
Entire casts of "Green Acres", "Mama's Family", "Designing Women", & "The Golden Girls"
Lucille Ball
Vivian Vance
Shirley Booth
Jean Stapleton
Andy Griffith
Don Knotts
Jim Nabors
Bob Newhart
Nell Carter
John Ritter
Joyce DeWitt
Fran Drescher
Park Overall
Marla Gibbs
Beth Howland
Irene Ryan
Donna Douglas
Marcia Cross
Reginald VelJohnson
Sally Field
Reese Witherspoon
Marlo Thomas
Bea Benaderet
Debra Messing
Susan Lucci

From "Days of our Lives": Deidre Hall, Alison Sweeney, James Reynolds, Arianne Zucker, Kristian Alfonso, Frances Reid, Eileen Davidson, Joseph Mascolo, Lauren Koslow, Suzanne Rogers, John Aniston, Josh Taylor, Lisa Rinna, Peggy McCay...basically the entire cast from the past and present with the exception of a few people that get on my nerves.


...those are the ones right off the top of my head.

Patricia Wettig as the cancer stricken Nancy on Thirtysomething is another actress i really liked. I can add Scott Bakula as Dr. Sam Beckett on Quantum Leap was another actor i liked too. Viewers for Quality Television really liked Scott Bakula and Dana Delany, since they seemed to win all of the "Q" awards back then.