How Are These Names For Characters?

I’m writing a screenplay (Script) and I have just come up with name for these characters and there surnames will be [name_m]Baxter[/name_m]!

[name_m]Adam[/name_m] [name_m]Baxter[/name_m] (Dad)
[name_f]Suzanne[/name_f] [name_m]Baxter[/name_m] (Mum)
[name_m]Harry[/name_m] [name_m]Baxter[/name_m] ([name_m]Son[/name_m])
[name_u]Morgan[/name_u] [name_m]Baxter[/name_m] ([name_m]Son[/name_m])
[name_f]Cassandra[/name_f] [name_m]Baxter[/name_m] ([name_m]Daughter[/name_m])
[name_f]Iris[/name_f] [name_m]Baxter[/name_m] (Grandma)

Plot:
[name_m]Adam[/name_m] and [name_f]Suzanne[/name_f] [name_m]Baxter[/name_m] are struggling to cope with their eleven year son [name_m]Harry[/name_m] always wanting attention and his siblings [name_u]Morgan[/name_u] aged eleven and [name_f]Cassandra[/name_f] aged nine try to live with their annoying brother. But when Grandma [name_f]Iris[/name_f] comes to visit [name_m]Harry[/name_m] stars making up lies about everything!

Also Cassandra’s mum probably wont call her by her full name of Cassandra very often most of the time her mum will call her Cassie.

At first glance, I thought that the names were a bit bland, overused perhaps, but I think I’m starting to like a few, especially [name_f]Iris[/name_f] and [name_f]Cassandra[/name_f]. If you’re going for the traditional route, this should do, but the one thing I would change would be [name_m]Harry[/name_m]. I understand if you really like it or something, but go for something traditional be less used. [name_m]Just[/name_m] my opinion.

Sure, sounds like a regular family to me.

They all sound nice together.