Well, title. Just name your favourite actors/actresses. Be it just one name, top 5, top 10, etc, etc, just name your favourite actors/actresses, lol. I'll do a top 10 myself and mention my number one favourite movies/TV shows from my favourite actors respectively (H).

Here's my list: (can change anytime soon, lol).

1. The Rock (Fast Five)
2. Jason Statham (Transporter 2)
3. Tobey Maguire (Spiderman 2)
4. Paul Walker (The Fast and The Furious)...still can't believe he has passed away :/
5. Matt Damon (Bourne Identity)
6. Justin Bruening (Knight Rider) To be honest, Knight Rider (2008) is the only Bruening's work that I have ever watched, but since I like Knight Rider a lot (though I haven't watched the original series yet which starring David Hasselhoff) and I found Bruening perfected as the lead for Knight Rider, he automatically made it to my list (H).
7. Vin Diesel (Triple X)
8. Sylvester Stallone (Rocky)
9. Jean Claude Van Damme (Bloodsport)
10. Mark Wahlberg (Ted)

ACTORS:

Daniel Day Lewis
Robin Williams
Jim Carrey
Leonardo DiCaprio
Chris Pratt

ACTRESSES:

Jennifer Lawrence
Natalie Portman

I'm sure there are more but these were the ones that first popped into my head

Actors:
Don Ameche
Groucho Marx
Steve Buscemi
Charlie Chaplin
Billy Bob Thorton (does good in serious roles)
Bruce Campbell
Danny DeVito (I like his directing too)
Gary Oldman (he's a fucking chameleon)
Leonardo Dicaprio
Dustin Hoffman (not 2000's Hoffman though)
Ray Liotta
Malcom McDowell (even if he's in a bad movie he's entertaining)
Jack Nicholson
Johnny Depp
Samuel L Jackson

Actresses
Elizabeth Olsen 
Cynthia Rothrock
Alanna Ubach
Scarlett Johansson
Allison Brie
Winona Ryder
Sherilyn Fenn
Ellen Page
Janeane Garofalo (even though her politics suck)
Gwyneth Paltrow (even though her as a human being sucks)
Selma Hayek
Pam Grier (similar to Malcom McDowell, she's fun even if the movie's complete shit)

Christoph Waltz... just love this guy in everything he's in but my favorite roles would be Django Unchained, Inglorious Basterds, and Green Hornet (yes, the Seth Rogen one). Didn't like his character in Spectre, but his acting was superb as always.

Really enjoy Seth Rogen and co. too; James Franco, Jay Baruchel, etc. 

Charlie Chaplin I've loved since I was a little kid, my dad was really into Chaplin.

Laurel and Hardy, Abbot and Castello, and The Three Stooges as well. 1900 - 1950's comedy is GOAT tbh. 

Anthony Hopkins another GOAT, especially after Westworld. 

The Rock, Kurt Russell, and Jack Black I really enjoy in their blockerbuster films.

Matthew McConaughey has been one of my favorites since Interstellar. I'll watch anything he's in. In that same vein, I'm hoping that Idris Elba and Matt will be GOAT together in The Dark Tower. I like Elba a lot but some of his recent movie roles have disappointed me.

I fell in love with Elizabeth Olson after Age of Ultron and I'll watch anything she's in too now.

Also really like Jennifer Lawrence, Emma Watson, Anne Hathaway, and more recently, Evan Rachel Wood.

Actors:
Tom Hanks
James Gandolfini
Jack Nicholson
Jonathan Banks
Morgan Freeman
Jim Carrey
Clint Eastwood
Tim Robbins
Tom Hardy
Mike Myers
Dana Carvey
Robin Williams
Chris Farley
Rodney Dangerfield

Actresses:
Kathy Bates
Nicole da Silva
Melissa McBride
Edie Falco
Oona Chaplin

Actors -
Bill Murray
Tom Hanks
Michael Keaton
Terrence Howard
Tom Hardy

Actresses -
Jane Fonda
Charlize Theron
Jennifer Lawrence
Kate Winslet
Helena Bonham-Carter