User blog comment:The Sponge House/Who Can Succeed Collin Dean When He Hits Puberty?/@comment-1650307-20180323045648/@comment-32999728-20180323230552

But his sisters have adults voicing them as well as Liam and Zach so it shouldn't be offputting if Lincoln and Clyde are also voiced by adults. Plus, if they nd up sounding older, they could just chalk it up as puberty or make up as excuse like Hey Arnold did with Gerald.