Which screen personality would you confidently shoulder with the responsibility of humanity's survival?

I Am Legend recently broke the record for biggest December film opening weekend, raking in $76.5 million. Which screen personality would you confidently shoulder with the responsibility of humanity's survival? [9279 votes total]
Vin Diesel (279): 3%
Chuck Norris (2035): 22%
Angelina Jolie (1695): 18%
Sylvester Stallone (106): 1%
Arnold Schwarzenegger (218): 2%
Will Smith (1255): 14%
Steven Seagal (168): 2%
Harrison Ford (1033): 11%
Stephen Colbert (2323): 25%
Other (167): 2%