john newton as superboy 1988

i was looking at some pictures on imdb about batman and superman through the years starting in 1943 to 2016. when i was going through the pictures it showed this name John Newton playing superboy 1988. so i looked on imdb for this person and found some shows and movies he made over the years. this is him on what shows and movies he did---http://www.imdb.com/name/nm0628542/?ref_=nv_sr_1 and if you click on superboy it shows gerard christopher played superboy which i knew. but didn't know john did it to. so why the screw up?

his first series was superboy and so i clicked on it, it showed someone else that did the series. don't know if this is some screwup on imdb or who is at fault here.

this is the link to look at all the pictures on batman and superman through the years http://www.imdb.com/comic-con/batman-superman-through-the-years/rg1405262592?page=1&pf_rd_m=A2FGELUUNOQJNL&pf_rd_p=&pf_rd_r=02Z39EST44PZVW2SZY5T&pf_rd_s=center-3&pf_rd_t=57801&pf_rd_i=&ref_=mg_ccn_mg_mi_mi_sm.

there is 76 pics. not one shows gerard christopher but does show john newton. most of the pictures show the cartoons on batman and superman. john is shown in picture #59