George Clooney wore a pilot's uniform along with his business partner Rande Gerber, where the two posed behind the controls of a private jet.
However, his wife Amal was not seen in any of the snapshots while posing for photos with his friends A-lister.
The 57-year-old actor revealed that he missed the first night of the festivities, as he chose to stay at home with his one-year-old twins, Ella and Alexander, according to online entertainment.
While his business partner Rande Gerber and his wife Cindy Crawford dressed up as rock stars at the first Halloween party, he was at home cleaning the babies.
He told the publication: "Last night, they were disguised as rock stars, and I was disguised as a guy who cleaned a baby's diaper."
He added: "It was a fantastic costume. Oh, very fun, you could imagine the fun I had last night. "
However, George enjoyed the second Halloween party while looking elegant in his full pilot outfit.
Accompanied by Rande's wife, model Cindy Crawford, she stayed with the theme of flying high.
Beauty looked like a stewardess in a navy, orange and white dress.
She complemented her look with white leather high-heeled boots.
Cindy designed her braids in a bouffant style and added a dramatic eyeliner and a glossy blusher lip to her disguise.
The model uploaded a photo of the trio showing her look to her 3.6 million followers on Instagram.
She subtitled the post: "Now addressing: @Casamigos Air #casamigoshalloween".
Fans bombarded beauty with comments while getting over 92,000 "likes" for the fun moment.
One wrote: "How funny! I love to approach the air of #casamigostequila ".
Another person responded: "This is awesome, Happy Halloween."
A third person joked: "Where can I book?"
Meanwhile, George recently made headlines after attending the Variety & # 39; s Power of Women event earlier this month, where the actor referred to himself as "Amal Clooney's husband".
According to MailOnline, the 57-year-old began: "Hi, I'm George, I'm Amal Clooney's husband."
The high-profile couple got married in Venice, Italy, in 2014, where they saw several faces full of stars in the luxurious ceremony.
The couple received the twins, their daughter Ella and their son, Alexander, last year.
Express has contacted its representatives to make comments.