User blog:VicoPaz97/Which original characters still have something to offer to the series?

I'm talking about our loved first generation, the twenty-four competitors we saw shine in TDI-TDWT, and some later in TDAS.

Many of them have gotten a lot of screentime and chances of developing (or derailment). The others were simply forgotten, or didn't have those opportunities. When we think on characters that need some screentime to show us what they can do, we can expect: When we talk about characters in need of development, or that seriously need more histories to return to their glory days when they were interesting: Yeah... And by last, that characters that we saw as "screen-hoggers", that really need to rest for a while, but many fans believe they have plenty room for development or can't stop appearing: So... seeing this, I ask you to think. Which original characters have the biggest room for development? Which contestants deserve to return for new seasons, due to their need or chances of interesting plotlines?
 * Eva
 * Noah
 * Katie
 * Tyler
 * Sadie
 * Izzy
 * Ezekiel
 * Justin
 * Cody
 * Harold
 * Trent
 * Bridgette
 * Lindsay
 * DJ
 * Beth
 * Geoff
 * LeShawna
 * Courtney
 * Duncan
 * Heather
 * Gwen
 * Owen
 * Sierra
 * Alejandro