IMHO:
Marvelous Marvin Hagler
Clint Eastwood
Bruce Springsteen
Steve McQueen
Bernard "The Executioner" Hopkins
Burt Reynolds
Sharon Stone
Trent Reznor
Mick Jagger
Chris Evert
Tom "Gay Homosexual Cult Member Freak" Cruise
Teddy Atlas
Steve Ovett
Ben Johnson (the sprinter, not the playwright)
Eminem
Tom Cruise likes and owns motorcycles, and planes but I have serious doubts about his being accurately typed as ISTP. Even though he's commonly listed by people who are more informed than I and "academic" on the subject.
They say he's an Introvert which I buy, in that many actors and famous orators and world leaders are introverts...so I won't dispute that thought.
I think he's an N...a capital N. Notice how he leaps around from topic to topic without any prompting or lead ins from the interviewer.
YouTube - Crazy Ole' Tom Cruise on the Today Show
I also think he's an F. He doesn't communicate on the topics he's free form flowing on as a T would? There are no concrete examples, he just conveys that he Feels strongly about what he knows.
I'd also guess that he's a J. Although that seems to be more difficult to pin down from a distance.
Further,
1. He likes to brag about his planes, bikes, houses, trips, etc to people around him. An ISTP is highly unlikely to engage in that type of behavior, most ISTP's I've ever known appreciate and like to share our toys in a differing context.
2. Scientology? wtf!? It's rare to meet an ISTP that embraces anything other than some personal thoughts and a curious disdain for rigid religiousity.
I'd describe most ISTP pursuits in that arena as purely accepting of others and Zen...well after maturity post early twenties is reached. Please pipe up someone if you see it differently for yourself, or in observing others.
3. He has all those toys but doesn't work on them himself? Doesn't even lift a wrench? wtf? Unless I've missed something in my query.
4. An ISTP would be curious or not curious about psychology, one might critisize the mental health system as being the mental disorder system But I doubt an ISTP would dismiss the entire field as being bunk.
5. "The hair"
So, I'd say that Tom Cruise has played a lot of ISTP roles in movies. But IMHO that's about the extent of it.