Shosuke Todoroki
Parents: Midoriya Izuku and Todoroki Shoto
Age: 15
Gender: male
Looks: White and green hair, freckles and green eyes
Quirk: Ice
Siblings: fraternal twin sister Itsuki
U-A first year

Itsuki Todoroki:
Parents: Midoriya Izuku and Todoroki Shoto
Age: 15
Gender: female
Looks: Red hair, freckles, blue eyes
Quirk: Fire
Siblings: fraternal twin brother Shosuke
U-A first year

Kazumi Bakugou
Parents: Bakugou Katsuki and Kirishima Eijirou
Gender: female
Age: 15
Looks: long black hair with red streaks, red eyes, razor sharp teeth
Quirk: lava
U-A first year

Hiki Shinsou
Parents: Shinsou Hitoshi and Kaminari Denki
Gender: female
Age: 15
Looks: blonde hair with purple Highlights, purple and yellow eyes
Quirk: able to mind control someone after she electrocutes them
U-A first year

Hato Todoroki
Parents: Takami Keigo (Hawks) and Todoroki Touya (Dabi)
Gender: male
Age: 18
Looks: White hair and wings, golden eyes
Quirk: fierce wings, that also light up in blue flames
U-A third year
Credit to: Juniperjadenlove on Instagram

Setsuko Todoroki
Parents: Tenko Shimura (Tomura Shigaraki) and Natsuo Todoroki
Gender: female
Age: 16
Looks: White long hair with light blue highlights, red eyes, slightly dry skin but not too bad cuz she takes care of it with skincare products
Quirk: small Ice Quirk and decay
U-A second year

Arashi Todoroki 
Parents: Fuyumi Todoroki and Rumi Usagiyama (Mirko) 
Gender: Male 
Age: 16 
Looks: Silver hair with a hint of wildness, vibrant red eyes, lean and muscular build, rabbit-like ears, and a small, fluffy tail 
Quirk: Frost Hopper - Can create and manipulate ice to enhance his agility and speed, capable of altering the friction of his ice for strategic advantages 
U-A Second Year

If you're wondering how they had kids, well, they met a Lady with a quirk that can make people, who are unable to get pregnant, be able to get pregnant. And Hawks was able to get pregnant thanks to his mutant quirk and bird traits.