The 7th Heaven and Party of Five actor weds Melissa Cunningham in California
Credit: Devan/INFGoff

Rev. Camden would approve: 7th Heaven actors Jeremy London and Melissa Cunningham were joined in holy matrimony Saturday in California, a source confirms to PEOPLE. (London played young minister Chandler Hampton from 2002-2004 on the long-running WB show, while Cunningham appeared in a 2003 episode.)

At the 5:30 p.m. ceremony at the Hidden Chateau and Garden in West Hills, the bride walked down the aisle in a dress she’d designed herself. The groom wore Hugo Boss.

The 150 guests included Cunningham’s friend Carmen Electra, just back from the MTV Video Music Awards in New York City; London’s identical twin brother, actor Jason (who starred in 1993’s Dazed and Confused); and actors Kevin Connolly, Matt Lindquist and Jeremy Sisto.

The day before the wedding, Cunningham’s friend and bridesmaid, So Low designer Sarah Siegel-Magness, threw her a bridal shower in a private cabana at L.A.’s Peninsula Hotel. Bridesmaids wore special jumpsuits designed just for the party by Siegel-Magness.

London, who played working-class Griffin Holbrook on Party of Five, and Cunningham met in 2000 when she auditioned for a film he was producing, the Tommy Chong comedy Secret Agent 420 (she got the part). London proposed on December 23, 2005, with a three-carat center-cut diamond ring.

At a post-Emmys party on Aug. 27, London, 33, told PEOPLE how important it was that everything be perfect on the big day. “Talk about busy,” he said. “I had no idea. That’s the hardest part all the logistics and worrying about things going wrong or right.”

What’s next for the newlyweds? “I’m definitely going to expand our family as much as possible,” London told PEOPLE, “as soon as possible.”