Not 100% sure (and I could be wrong), but if I had to venture a guess I would imagine it would be these 15 as they are the only people who have cards in the set that aren't tied to any kind of sports:
Marc Forgione
Aimee Mullins
L.L. Zamenhof
George W. Bush
Jo Frost
Guy Fieri
Chuck Woolery
Jack LaLanne
The Royal Wedding
Stan Lee
Jim Nantz
Wee Man
Peter Gammons
Cheryl Burke
Matt Guy
Marc Forgione
Aimee Mullins
L.L. Zamenhof
George W. Bush
Jo Frost
Guy Fieri
Chuck Woolery
Jack LaLanne
The Royal Wedding
Stan Lee
Jim Nantz
Wee Man
Peter Gammons
Cheryl Burke
Matt Guy
Working on: 2011 Topps 60/Next 60 unique Autos (50/142) & Relics (?/101)