I know it's been a while since Walt was last on the show, but he looked about 20!
Last time I saw him I was saying how cute he was.. Jeez Louise.. BAHH.
he's the only one that actually shows aging cause he's going through puberty.
maybe thats why they had that whole time warp thing so they have an ecuse for walt aging lol.
Its hilarious at the end of seaosn 2 when Walt looks older and is taller but still has the tiny voice, and its funny beacause he has to bend awkwardly to hug Michael on the boat to make him look smaller