Introducing Susan "Suz" Elise O'Donnell Edwards. Cassie's sister in-law.

Cass answers the door yet again to a familiar yet long since seen face.
"Suz? Is that you?" she asks.
"Ain't none other!" the sassy southern cat replies. "I swear it's been some time since I done seen you. Good lord girl! Yer HUGE! You sure it ain't givin' you no problems?"
"Nope! That special ability of mine keeps me healthy. Mind you mobility gets difficult but that's what spring strength training is for."
Suz nods and then gets a sniff of the air of Cassie's home and all the wonderful aromas. "Now I know why you're so fat big girl! Cookin' up a storm I bet!"
"Speaking of my brother," giggles Cass. "Where is he?"
"Oh you know him, fighting Daleks or whatever in Victorian London again."
Kate overhears this. "What? Cor mum! Uncle's over there and here I am stuck in 2018!"
"Oh and there's my favorite niece!" says Suz. "C'mere and give yer Auntie Suz a hug now darlin!"
"Oh, sure. I guess 2018 isn't all bad. You're here."
Cass giggles.