Tabishland

Every now and then my kids and I challenge each other to see if we can remember all your dogs' names. I have to remind them you gave - was it Oscar? - away. Now I'm confused. I know Laika and I believe the boy who is trying to fool everyone by sitting peacefully is Magoo. One of the others must be the new Jack. So who is the OTHER one?
 

Jack is the deaf toddler in the back. Newest foundling is Skeeter? Zero?

Was supposed to be a foster dog, but "Jack needs a playmate....."