Haute Events: Allison Janney, Kate Walsh and Sara Ramirez at Marquee; Grey Damon and Allison Melnick at Tao

Actresses Allison Janney, Kate Walsh and Sara Ramirez were spotted at a VIP table taking in the scene inside The Library at Marquee at the Cosmopolitan of Las Vegas, while DJ Tiesto made a late-night stop in the main room to check out the EC Twins.

Grey Damon, best known for his roles in “Friday Night Lights” and “True Blood,” dined with nightlife queen Allison Melnick and friends at Tao Asian Bistro at the Venetian. Taking over the private dining room the large group feasted on filet, seabass, crispy rice and more before heading up to the nightclub to take in the sounds of DJ Vice.

On Friday, Meagan Good was spotted in the Boom Box room at Marquee. The actress sipped Champagne with friends.

At Tao, Olympic sprinter Usain Bolt, the fastest man in the world, took in the sounds of DJ Reach with friends.

Click on the photos below to enlarge.

Like Haute Living Las Vegas? Join our Facebook page or follow us on Twitter. Want Haute Living Las Vegas delivered to your in box once a week? Sign up for our newsletter.