yes, one brother
he has 3 siblings, all older
Yes, he has a sister
Matt Damon has one older brother named Kyle.
They are brothers.
He has 4 brothers:Sean,Steve,Matt,and Dan
yes he does but we only know he has a sister
Lisa & Maggie who the characters r named after & Mark
Yes he has one sister called Kara Day Lanter
He has one sister, Laura Jayne Smith, but no others have been mentioned.
Yes, four brothers: Dan, Matt, Sean and Steve.
Yes, he does. He has brother named Matt and a sister named Zina.