Jack's mom: I would choose Jennifer Aniston because in her previous movie Marley and me she had four children that she would care about when something happened to them. I also think she would be great at this role because she has the appearance of a mother and loving wife. She is good at adjusting to roles that she is offered so she would have no problem being a farmer,wife and mother. She was a mother and wife in the movies we're the millers,Marley and me and also Just go with it. She was great in all those movies and i believe she would be great for this role.
Jack's dad: I would choose Chris Hemsworth Because he is very protective of his own children so he would do a great job working as a father with children. He is also serious in the movie Thor when he tried to kill the bad guys. Also he would be great for this role because he is mature because he is a grown man with kids so in the movies that he has a part in he is so serious. Even Chris's appearance makes him look like a mature farmer that is very strict. He is a very good actor and can adjust to any roles fast even if they are far away from his actual self but in this case he would be a good choice for the role of Jack's dad.
Jack: I chose Tenzing Norgay Trainer because he is a friendly character in the show Liv and Maddie he was the sibling of two girls and a brother he should get along just fine with a sibling in another movie. He was trustworthy, brave and respectful he showed all of these traits when he'd keep secrets with Liv and Maddie so they could trust him. He was brave when he tries all the experiments on the family's belongings. He shows respect when they have family meetings and he respectfully listened to his parents and siblings feelings and what they had to say. That is why i chose Tenzing Norgay Trainor for the role of Jack.
Joseph: I chose Trevor Tordijman for the role of Joseph because they are both troublemakers and have a bad boy look. In the show The Next Step james would always be getting in trouble and dresses like a bad boy and in the book Orbiting Jupiter Joseph has a bad boy look and he gets in trouble. James doesn't have to adjust much because they both have a lot in common. That's why i chose Trevor Tordijam for the role joseph.