OK, I really do think RW is an ENFJ, and AT THE VERY LEAST an EFJ.
I don't think most of these distinguish between J/P, but I'd look for Fe or Ne in her quotes. I see more Fe than Ne. I'm not saying that ENFPs don't have a work ethic or anything, I just don't hear Ps making these comments. They're all about flow, not focus.
"Actors have this influence - people ask about our clothes and things like that," she says. "I don't want my politics to become part of that. It's personal to me."---Witherspoon to Entertainment Weekly, August 24, 2007.
"Filmmaking is a collaborative process. I have things to add, and whether someone chooses to use them is their prerogative. But I'm not going to shut up, I have a lot to say, and I don't let anybody give me any shit. I have earned the right to have an opinion, so when people don't listen to me, I get a little pissed off."---Witherspoon to Premiere, August 2001.
"Getting older, I think you just have to accept that we're all just big goobers. I think that's what brings peace in life; realizing sooner rather than later that we're all just big goobs!"---Witherspoon US Weekly, September 2, 2002.
"I don't fuck around. I don't think it's a joke that people put up $20 million to finance a movie. I show up. I know my lines."---Witherspoon on her work ethic, quoted in Premiere, August 2001.
"I'm very lucky to have a very great team of people that sort of help me make decisions, help me schedule my life, that kind of thing. But also, yeah, I think it's also about loving what you do and I think people see that and I think they can tell in a film if you're having a lot of fun and enjoying yourself, or if you're just sort of miserable and sleepwalking. I really love what I do. I have a great passion for it."---Reese Witherspoon on her success to filmforce.ign.com, June 30, 2003. I don't think this is indicative of J or P, but I included it anyway.
"I've argued with lots of directors, because they pay you to come in and give your two cents about your character. It's going to be you up there on the screen and you should know better than anybody what you're doing."---Witherspoon quoted in Interview, November 1994.
"It's nice to have people's support and goodwill behind you because there are certainly times when you don't have it. The greatest thing about the success that I am having now is that I've had years and years to sort of succeed and fail. When you have all the ups and downs of a career, then you know this is the good stuff and I feel very lucky to be so supported"---Witherspoon.
"It irritates me that the sort of fad that 'stupidity is cute' might really be doing some serious damage. It's the cheap answer, and let's hope that their moment fades. Sorry, but I have a little girl."---Witherspoon quoted to W, February 2006.
"There's no dumb blonde in her," says Gary Ross. "This is a brilliant blonde who was very focused and mature at a very early age. She was always very confident and driven."---director Gary Ross on Witherspoon to Vanity Fair, September 2004.
"There's something about overt sexuality ... " She shudders. "Like it's scatological or something! I'm all about trying to make movies that have nothing to do with my body. I'm prudish and nervous. I don't have the excuse that my grandmother is watching anymore, but she's watching!" Witherspoon looks up. "It makes me nervous when I see a woman with her midriff showing. I would never do that on purpose, and if it happened by accident I'd be mortified. I feel threatened by woman who ...eeewwww!" She covers her face with her hands. "Like women on the cover of hootchy-kootchy magazines! The way I was brought up, I wasn't allowed to wear black, and I wasn't allowed to wear bikinis. And I was only allowed to wear two shades of lipstick, peach or pink. It was all about what was 'appropriate.'"---Witherspoon quoted to Vanity Fair, September 2004
"Who is so arrogant and vain that they don't want people to know they're real or human? That they're fallible? We are all just people. That's part of what's amazing about being an actor. It's about compassion and deep feeling for other people's pain or struggle or drive. I never feel above them. I never feel beneath them. That's probably what led me to this profession."---Witherspoon to Interview magazine, December/January 2006.
On Tracy Flick, her blindly ambitious character in "Election":"Tracy for any actress is irresistible. She was like so many people I knew and grew up with. Everyone knows one of those horrible people that you want to kill because they're so perfect and you can't. This character is for all intents and purposes likeable. But you just can't stand her."---quoted to The Boston Herald, May 3, 1999.
Quoted in an October 28, 1998 article in USA Today, "Pleasantville" writer/director Gary Ross called Witherspoon "funny and lovely, a throwback to stars like Carole Lombard and Rosalind Russell. She's a phenomenally talented comedian. There's a real life force to her, and an intelligence that many young actresses don't have."