I know that I read the OP and answered alot of puzzles but I thought I’d answer anyway…
I guess Kimble could be Arnie in The Running Man as well but that one has been used already.
That’s really the point. All you have to do is pick some random surname and use it to look up characters (for example: Sparky ) and you’ll get back oodles of actors’ names in oodles of movies or shows.
The whole idea here is to pick some character names that may not be all that obvious (as opposed to Corleone or Durden or Bourne or Ocean) but that are indeed played by the same actor. Your guess of John Wayne on the first puzzle was the sort of thing at play here.
I have no issue with the idea of the multi-actor approach – in a new thread. But having a mixed bag in the same thread isn’t what I had in mind. Too confusing in an already confusing environment.
A little harder:
#39
Lucas
Terry
Mitchell
(Unknown)
Wills
I was shooting for Bruce Willis in The Fifth Element with Dallas, and Arnold Schwarznegger in Kindergarten Cop with Kimble, but the others are right.
So it is. :smack: Sorry. I’ll go quietly.
Whether it’s your answer or not, Chiwetel Ejioforfits the requirements (including quite a few unknown surnames).
Ed Norton. Were you purposely avoiding Vinyard and Banner? 
No need to go, as long as you want to try your hand at the idea in the OP.
That was the answer indeed, well done. The “unknown” I was thinking of was The Operative from Serenity, it didn’t occur to me until you said it that he’s played other characters without last names.
Yep. And even Rockefeller! I was even leery of Eisenheim since it’s so recent. Decent movie, in fact. And I thought Narrator wasn’t so much a surname as a dead giveaway. (Would Durden have been too easy?)
Rockefeller and Eisenheim wouldn’t have clued me in, I haven’t seen either. If you hadn’t thrown me a bone with Graham (or Durden) I’d never have gotten it.
#40
Rickenbacker
Sloane
Dux
Walker
McCord
Archer
LeBlanc
Frida is good to excellent. Salma isn’t her usual hot self as in the Banderas things or the snake dance number, but still a fine piece of work. But The Illusionist is some real entertainment. Jessica Biel is fine!
Your guy is Jean-Claude Van Damme
Here’s another:
Foley
Gates
Tyne
Barnes
Gecko
Michael Douglas.
Gecko – too simple.
From the hip, based purely on Gecko: Michael Douglas.
Fortunately, I type faster than you do. 
Puzzle # 42 (perhaps)
Elgart
Doolin
Henry
Ryan
Hall
Walker
Bailey
So true. I almost edited for simulpost, but figured it was obvious.
Yep. Was Dux the tipoff?
Puzzle Number 43
Fields
Cooper
Gaines
Forrest
Clark
Dale
Dixon
It was – after Rickenbacker. Dux was my first test on the Van Damme page, and Van Damme was my first try on Rickenbacker.
Trial and error and the “find text” feature of Windows have streamlined the searching for me.
Gecko is the first one I felt comfortable enough with not even to check before guessing, although Deckard and Kimble pretty well had to have been Ford, but I was too late on that one.
If I hadn’t been beaten to the punch (I was away for several hours and didn’t know it was there) I would have shot from the hip for Holden with Sefton (there’s even a Doper with that name and his/her location is Stalag 17).