How I Met Your Mother alum Ashley Williams and her husband Neal Dodson have welcomed their first child together, her rep confirms to Us Weekly Credit: Dave M. Benett/Getty Images

Welcome to the world, little Gus! Ashley Williams and her husband Neal Dodson have welcomed their first child together, her rep confirms to Us Weekly. The How I Met Your Mother alum gave birth at home on Sunday, Oct. 5.

Their baby boy Gus Williams Dodson weighed in at 8 lbs., 8 oz., and measured 20 1/2 inches long.

Williams' former HIMYM costar Cobie Smulders announced yesterday she's expecting her second child with Saturday Night Live's Taran Killam. Williams played Victoria on the show from 2006 to 2014.

The Something Borrowed actress revealed she was expecting in July. "This is FOR REAL. So many reasons to dance. #babydodson," Williams captioned a pic of her growing baby bump. "My family definitely made me play pin the sperm on the egg two days ago. #weird #babydodson," she added.

Lucky Gus already has two cousins to play with. Williams' sister, Father of the Bride star Kimberly Williams, shares sons Huck, 7, and Jasper, 5, with her husband, country superstar Brad Paisley.