ARTS & ENTERTAINMENT

Tobey Maguire -- Peter Parker, "Spider-Man"

Height: 5'9" Weight: Unknown. But the actor had to bulk up significantly to play Spider-Man after having slimmed down to just 137 pounds to play jockey Red Pollard in "Seabiscuit." Heroic secret: To go from high school nerd to muscle-bound hero, Maguire underwent six months of... Merrick Morton / Columbia Pictures
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