Entertainment TV Inside 'Shameless' Star Steve Howey's Surprise 40th Birthday Party (on a Yacht!) "Steve grew up on a sailboat, so that was the inspiration to do the party on a yacht," Steve Howey's wife Sarah Shahi tells PEOPLE exclusively of their July 16 bash By Patrick Gomez Patrick Gomez Patrick Gomez is the Editor in Chief/General Manager of Entertainment Weekly. Formerly at People magazine and The A.V. Club, the Critics Choice and Television Critics Association member has appeared on 'Today,' 'Extra!,' 'Access Hollywood,' 'E! News,' 'CNN,' and 'Nightline,' and can be seen frequently on 'Good Morning America.' Follow the Texas Native at @PatrickGomezLA wherever your media is social for all things 'For All Mankind' 'Top Chef,' and puppy related. People Editorial Guidelines Published on July 17, 2017 10:35 PM Share Tweet Pin Email Trending Videos 01 of 10 Sister Wives Matt Winkelmeyer/Getty When it came time to celebrate her husband Steve Howey's 40th birthday, Reverie star Sarah Shahi, 37, enlisted the help of Howey's on-screen wife Shanola Hampton to get the cast of their Showtime series onboard. "Shanola is basically my sister wife," Shahi (right) tells PEOPLE. "She helped me organize everything on the Shameless end." 02 of 10 Keeping It a Surprise Matt Winkelmeyer/Getty "I'd been planning this thing for months and he has no clue," Shahi, who has three children with Howey, says of inviting 80 of her husband's closest family and friends to hop on a party cruise around Marina del Rey, Calif. on Saturday. "When he mentioned having a party I said, 'Give me a list of a couple people and I'll try to throw something together — but I'm busy with my show!' In the past week he kept trying to get information out of the nannies and of Shanola." 03 of 10 A Family Affair Matt Winkelmeyer/Getty "My whole family came into town and we drove over together," says Shahi. "Steve is kind of shy and doesn't always love big parties but I knew he would love this one." 04 of 10 The Big Reveal Matt Winkelmeyer/Getty "One of the reasons Sarah Shahi is the love of my life is that for my 40th birthday she surrounded me with the love in my life," says Howey. 05 of 10 A Sure Bet Matt Winkelmeyer/Getty "I rented out this huge yacht so we could spend the night dancing and gambling," says Shahi. 06 of 10 A Sailin' Man Matt Winkelmeyer/Getty "Steve grew up on a sailboat, so that was the inspiration to do the party on a yacht," says Shahi. 07 of 10 Shamless Family Matt Winkelmeyer/Getty Howey with his Shameless castmates. 08 of 10 A Cake to Remember Matt Winkelmeyer/Getty Shahi ordered two special cakes for the celebration... 09 of 10 Sweet Throwbacks "I got these really cute pictures of him as a kid and put them on the cakes," says Shahi. "On one of them is when he fell into the toilet and another is where he's wearing a motorcycle helmet and cape." 10 of 10 A Lot to Celebrate Matt Winkelmeyer/Getty "We've been together for almost 15 years, we have three children. I just wanted to throw him this celebration of life and love," says Shahi (with Howey and son Wolf, 8. Not pictured: twins Knox and Violet, 2).