09/10/2012 at 11:15 AM EDT
Colbie Smulders's wedding
to Saturday Night Live
funnyman Taran Killam
on Saturday was a star studded – and family-friendly – affair.
Smulders's How I Met Your Mother
castmates Neil Patrick Harris
and Alyson Hannigan
were on hand for the celebration – and so were their little kids.
"Spent the weekend with the family at one of the most fantastic weddings I've ever attended. Good times. So much love," Harris Tweeted on Sunday
It was all about family for Smulders (who wore a Claire Pettibone gown) and Killam, who are parents to 3-year-old daughter Shaelyn.
Harris and partner David Burtka
were photographed laughing with their 22-month-old twins
, Harper and Gideon, while Hannigan's daughters Satyana, 3,
and Keeva, 10 weeks
were also there.
star Joe Manganiello
, who plays Marshall's law school buddy Brad on How I Met Your Mother
, also attended the nuptials.
Smulders and Killam announced their engagement in January 2009