Possible ISFP actors?
I think Brad Pitt may be one. Kristen Dunst?
Amanda Seyfried ?
Monica Bellucci, Shannyn Sossamon, Famke Jannsen. Maybe ISFP or ISTP. Maybe Angelina Jolie too.
I think Brad Pitt is an extrovert.
Alfred Molina, Jon Lovitz, Jeff Daniels, ...
Amanda Bynes, Kirsten Dunst, Alicia Silverstone, ...
Examples of Jungian types representatives
If long-deceased actors count, I'd say Marilyn Monroe was an ISFP icon (although most of her roles were _SFJ or ESFP).
Ever seen this site?
Barbra Streisand? (As well as her character in In A Clear Day You Can See Forever.)
Tentative typing: ISFJ 6w5 or 9w1 (Sp/S[?]).
Angelina Jolie = ESTP.
Christopher Reeve has been typed as having been ISFP. Best Superman ever!