Keifer Sutherland's alter ego Jack Bauer was known for battling the bad guys and always winning. But his battle with hair loss is one that he seems to be losing.
While there is no doubt saving the world causes a good amount of stress, Keifer's hair loss and thinning is more likely attributed to natural hair loss. In fact, nearly half the men his age (44) experience some degree of hair loss.
From his photos, you can see he has deep recession in the temporal region and thinning across the hairline, but all hope is not lost.
Were he to invest in regular Rogaine regimens and Low Level Laser Therapy treatments, he could stimulate those thinning follicles into growing healthier, thicker hair and prevent further recession.