I found it really fun last time to look at all the sibsets so I thought you all might enjoy it too. Note: I found it easier to just use “has” for all of them, but some of the actors are deceased.
It's ordered alphabetical by last name.
H I J K L M
Jane Hall has a daughter,
Lucia.
Don Hany has a daughter,
Tilda.
Andrew Harwood has two daughters,
Lani and
Taci.
Chard Hayward has two sons,
Adam and
Sean.
Noni Hazlehurst has two sons,
Charlie and
William.
Sophie Heathcoate has
Madeleine and
James.
Luke Hemsworth has two daughters,
Holly and
Ella.
Mark Holden has
Cane and
Katie.
Liddy Holloway has
Francesca,
Mark and
Joel.
Inge Hornstra has
Summer and
Javi (b).
Anna Hruby has
Polly.
Hugh Jackman has
Oscar Maximillian and
Ava Eliot.
Steven Jacobs has a daughter,
Isabella Anthonette.
John Jarratt has
Zadia,
Ebony,
Charlie,
William,
Jackson and
Riley.
Aaron Jeffrey has a daughter,
Sophia Jade.
Claudia Karvan has
Audrey and
Albie, and is stepmother to
Holiday.
Nicole Kidman has
Isabella Jane,
Connor Anthony,
Sunday Rose and
Faith Margaret.
Maggie Kirkpatrick has
Caitlin.
Jacek Koman has
Clementine Coco and
Quincy.
Lloyd Lamble has
Elizabeth,
Lloyd Walllis and
Caroline.
Daniel Lapaine has
Parker (g) and
Sonny.
Debra Lawrance has
Grace and
William.
George Lazenby has
George Samuel,
Samuel Robert and
Kaitlin Elizabeth.
Heath Ledger has a daughter,
Matilda Rose.
Val Lehman has
Cassandra,
Joanne and
Jason.
Lenka has a son,
Quinn.
Mark Little has two sons,
Angus and
Jasper.
Colin McEwan has a son,
David.
Tammy MacIntosh has a son,
Benjamin.
Simmone Jade Mackinnon has a son,
Madigan James.
Elle Macpherson has two sons,
Arpad Flynn Alexander and
Aurelius Cy Andrea.
Deborah Mailman has two sons,
Henry and
Oliver.
George Mallaby has
Kirsti,
Luke and
Guy.
Ned Manning has
Jack and
Ella.
Jessica Marais has
Scout Edie.
Tony Martin has a son,
Justin.
Vince Martin has a daughter,
Emma.
Christopher Mayer has
Connor and
Bronte.
Bob Maza has two daughters,
Lisa and
Rachael.
Sue McIntosh has
Katherine,
Olivia,
Stephanie and
Jason.
Leo McKern has two daughters,
Abigail and
Harriet.
Julian McMahon has a daughter,
Madison.
Jane Menelaus has
Angelica and
James.
Keith Michell has
Paul and
Helena.
Dannii Minogue has
Ethan Edward.
Pia Miranda has a daughter,
Lily.
Warren Mitchell has
Rebecca,
Daniel and
Anna.
Peter Mochrie has a son,
Cade Mackinlay.
Poppy Montgomery has a son,
Jackson Phillip Devereaux.
Richard Morgan has two daughters,
Ella Taylor and
Zoe Taylor.
Tara Morice has a daughter,
Ondine.
Callan Mulvey has a stepson,
Charlie.