MICHAEL J. FOX

AGE: 45
OCCUPATION: Actor, stem-cell advocate
NUMBER OF TIME COVERS: 0
PREVIOUS APPEARANCES ON THE TIME 100: 0

PRO: Endorsed U.S. senators in the 2006 election based on their support of embryonic stem cell research. Appeared in political advertisements that displayed the effects of his Parkinson's disease for three senators—all of whom won.

CON: Admitted to intentionally skipping his medication prior to testifying before the Senate Appropriations Subcommittee in 1999 to illustrate the symptoms of his disease, leading to some conservative speculation that he had exaggerated his symptoms in the ads.