Here is the official character list:
Finn and Rachel Hudson:
-Evelyn Santana Hudson, 18
-Christopher Noah Hudson, 17
-Alexis Carole Hudson, 16
-Elizabeth Quinn Hudson, 15
-Delilah Rose Hudson, 14
-Still needed: up to 1 more
Noah and Quinn Puckerman:
-Beth Trinity Puckerman, 25
-Mia Lucille Puckerman, 16
-Cole Mathew Puckerman, 15
-Zoe Santana Puckerman, 14
Santana and Brittany Pierce-Lopez:
-Katherine Witney Pierce-Lopez, 17 (carried by Brittany)
-Mario Santiago Piece-Lopez, 16 (carried by Santana)
-Josephine Susan Pierce-Lopez, 16 (carried by Brittany)
-Troye Julien Pierce-Lopez, 15 (carried by Brittany)
-Sophia Riley Pierce-Lopez, 14 (carried by Santana)
Will and Emma Schuester:
-Daniel Finn Schuester, 21
-Benjamin William Schuester, 17
-Jennifer Emma Schuester, 16
-Courtney Harmony Schuester, 15
Blaine and Kurt Hummel-Anderson:
-Krystal Brit Hummel-Anderson, 17 (adopted)
-Ezekiel Finnegan Hummel-Anderson, 16 (biologically Kurt's)
-Allison Samantha Hummel-Anderson, 16 (biologically Blaine's)
Rory and Sugar Flanagan:
-Nicholas Hudson Flanagan, 18
-Naomi Sugar Flanagan, 17
-Ryan Declan Flanagan, 16
Jake and Marley Puckerman:
-Veronica Leigh Rose-Puckerman, 17
-Jason Camden Rose-Puckerman, 16
-Annamarie Lucia Rose-Puckerman, 16
Mercedes Jones:
-Tyler Dominic Evans, 17 (with Sam)
-Angelica Bianca Evans, 16 (with Sam)
Sam Evans:
-Tyler Dominic Evans, 17 (with Mercedes)
-Angelica Bianca Evans, 16 (with Mercedes)
-Jameson Michael Evans, 15
Artie Abrams:
-Karla Maria Abrams, 16 (with Tina)
-Cecilia Marie Abrams, 16 (with Tina)
-Henry Charles Abrams, 15 (With Kitty)
Tina Cohen-Chang:
-Cecilia Marie Abrams, 16 (with Artie)
-Karla Maria Abrams, 16 (with Artie)
-Michael Robert Chang III, 15 (With Mike)
Mike Chang:
-Michael Robert Chang III, 15 (with Tina)
-Robert Ashton Chang, 14 (with Ashlyn Clayton-Chang)
Jesse St. James:
-Jesse Jonathan St. James Jr., 17
-Grace Lynn St. James, 15 (with Ashlyn Clayton)
-Piper Ashley St. James, 15 (With Ashlyn Clayton)
Sebastian Smythe:
-Andrea Serene Smythe, 15 (with Addison Clayton)
Sue Sylvester:
-Jasmine Jean Sylvester, 17
-Lilly May Sylvester, 16
Kitty Wilde:
-Gabriel Jacob Wilde-Lynn, 16 (with Ryder)
-Harper Marie Wilde-Lynn, 16 (with Ryder)
-Madison Nadia Wilde-Lynn, 15 (with Ryder)
-Henry Charles Abrams, 15 (with Artie)
Unique Adams:
-still needed: up to 2 more
Ryder Lynn:
-Gabriel Jacob Wilde-Lynn, 16
-Harper Marie Wilde-Lynn
-Madison Nadia Wilde-Lynn, 15
OCs:
-Nathaniel Ian Halston, 17
-Cynthia C. Johnson, 17
-Levi James Wilson, 16
-Ethan James McCgrah, 16
-Bradley Emily-Jane Martin, 15
-Dylan Calliope Bunton, 15