Mrs. Jay's is Alexander Jenkins, so that would mean his last name is Jenkins.
Thompson
Renee's (From cycle 8) last name is Alway.
McGuiness :]
Eva i don't know her last name but it was Eva i think it might be Eva Miller
jays last name is Brosnan(jay brosnan).
I know for a fact that jays last name is brosnan His last name is Brosnan it says so on Wikipedia.
Model!
season 3:bronsnan season 5:ricco
Kate's last name is Coll.
Tyra
nederlands
Her last name is Scelba-Shorte.