Remember when Milo Ventimiglia celebrated his 30th birthday?

It's safe to assume that affair was slightly more low-key than the party that was just thrown for Hayden Panettiere on her 18th birthday.

It took place at Malibu's LG House and included 75 friends and family members. Of course, numerous Heroes cast mates were on hand.

Among them were Adrian Pasdar (and his Dixie Chicks wife Natalie Maines), Ventimiglia, Greg Grunberg, Zachary Quinto and new Heroes pal Kristen Bell.

Italian food was served, along with sushi and other types of Japanese cuisine. The birthday cake was pink with a gold crown on top of purple frosted flowers and read," Happy Birthday Hayden."

After Panettiere blew out all 18 candles - after five tries - she posed with family for pictures. A big hug and kiss then followed from long-time boyfriend Stephen Colletti. In all, a fun night was had by all.