Board Thread:Site Problems and Appearance/@comment-8161155-20150331231201/@comment-26072045-20150401005158

Because soldier kid was played by Blake Bertrand so he was listed in the credits. In the credits he is listed as Soldier Kid.

The unnamed scout lady is played by Grey DeLise who is a regular on the show that provides addditional voices. Because of this they just put her on the credits as "additional voices" because otherwise they'd have to list each and every individual character she played which would be unnecsesary. So basically it's because the soldier kid was given a name technically so we stick to that.