"Words can't describe how happy I am to be married to my best friend," Bilyeu wrote on Instagram alongside a sweet wedding day photo. "This was an incredible 4 day celebration with friends, family and my now husband @thejoshaltman."
"One of the best days of my life yesterday getting married to my dream girl," wrote Altman, 37, on a post of the same photo.
The bride wore a custom gown by Australian designer Nektaria, featuring a long train and over 6,500 hand-sewn pearl beads.
At least one celebrity friend of the couple was in attendance, Dexter alum Julie Benz.
The celebrations featured a fun photo booth and themed party favors.