There seemed to be this recent trend of late middle-aged or elderly performers revisiting old roles - Harrison Ford, Mark Hamill, Carrie Fisher, Billy Dee Williams, Karen Allen, John Rhys-Davies, Tom Cruise, Val Kilmer, Patrick Stewart, Jonathan Frakes, Jeri Ryan, Kate Mulgrew, Gates McFadden, Marina Sirtis, LeVar Burton, Michael Dorn, Robert Duncan McNeill, Tim Russ, and Brent Spinner. I didn't know whether or not to include Sam Jackson. If fact, there have been younger performers like Natalie Portman, Ewan McGregor, Hayden Christensen, and Temuera Morrison doing the same. I didn't realize that the nostalgia factor had become such a big business in the Hollywood industry.