|Name||Boppijanitor Mason Josephs|
|Family||Pop (father), Kade (sister)|
|Enemies||Pop (when he wanted to throw him in the sea in Gramflu)|
| First Appearance|
An Oobi Vacation: Spit It Out!
| Last Appearance|
Oobi Babies: Babyinator
Liam Mason "Bop" Josephs is a recurring character in An Oobi Vacation. He is seemingly unaware of all sadness on Earth and is always smiling, unlike his father, Pop. He appears in four episodes of An Oobi Vacation, one of Oobi Babies, and in An Oobi Christmas.
He is portrayed by Bluedog Cochran.
In An Oobi Vacation, he appears in Spit It Out!, Gramflu, as a robot in Charlie's Time Machine, and deleted parts of Bein' Kakoo. He appears in Babyinator, an Oobi Babies episode, and also in An Oobi Christmas.