I love building Sims who are characters from stories, TV series, and movies.
TS2's BodyShop is and will always be the best place to succed at this in my opinion. You don't even need special face skinning skins.
For those advanced users who know how to face skin (which I used to do often) it's not really necessary unless you want a very perfect look alike of a person or character.
In just two short days I was able to create the following people/Sims from the old Dark Shadows TV series. Without face skinning.
True I have a multitude of cc eyes, hair, and skins, eyebrows etc. But Nothing special, created specifically for a particular person..like face skinning.
I was thrilled to see I had successfully (good enough) created in a few days Quentin (David Selby), Victoria Winters (Alexandra Moltke)
Professor Stokes, (Thayer David) Elizabeth Stoddard (Joan Bennett)
And my best work Angelique. (Lara Parker)
Why I mention this is because I have created these characters in every game, but returning to TS2 I found it was much easier to do this right and with more flare, and with more detail and more than ever they look almost exactly as those characters. I didn't have to skin their faces.
Just think about the right sparkle in their eye, the right placement of their eyes, the right stare, the right look of the eye, eyes are the windows of the soul. So, eyes are everything. I didn't skin these Sims any specific face skin (Where you use real pictures and put them over their face once you have the molding of the different face parts correct. It wasn't necessary. But choosing the correct skin (not even made for them) the right face details with cc etc. they turned out great, even if I say so myself.
Of course Sims animations will not reflect how these real people moved their eyes, moved their mouth or raised an eyebrow etc. The game can't do that on an individual bases, but standing still you could swear those are those characters/people. I was so excited to see I had gotten Quentin correct etc. I was jumping up and down. This is not something I could do in TS3 or TS4 and I had tried several times only to have to settle for however these Sims turned out. BodyShop is only one of TS2's features that keep it at the heap of the pile to some of us.
I wasn't even using extra sliders etc.
I'm still not happy with my Barnabas, or Roger, or Carolyn, but most the others in TS2 Dark Shadows turned out almost perfect if I only had the perfect hairstyles. Since I'm in a creative mood for awhile, I may create their hair myself, but it's been years since I worked on any hair for Sims.
Point: TS2's bodyshop is the best thing ever in sixteen years.
And remains the best Sim creator to date.
P.S. Meant to add (no brag just fact, jk) I finished Willie Loomis and Julie Hoffman and I'm very, very pleased with the results.