updated 04/10/2006 AT 01:00 AM EDT

originally published 04/10/2006 AT 01:00 AM EDT

Mark Wahlberg, 34, and model girlfriend Rhea Durham, 27, welcomed their second child, a son, March 22 in L.A., according to the Associated Press. Their daughter Ella Rae is 2.... Chris O'Donnell, 35—who guest-stars on Grey's Anatomy April 2—and his wife, Caroline Fentress, 33, had their fourth child, a boy (whose name wasn't released) March 24 in L.A.

Three ex-members of Britney Spears's security team, Lonnie D. Jones, Randy Jones and Silas Dukes, filed suit against two of the pop star's companies March 28 in L.A., claiming they worked 12- to 16-hour days without overtime and were fired last November without receiving final paychecks. Seeking unspecified damages, the trio allege that, in violation of labor laws, they were paid only a straight salary of $2,400-$3,350 a week without overtime pay despite sometimes being on call 24 hours a day. Spears's rep couldn't be reached.... Randy Quaid sued Brokeback Mountain's producer and Focus Features March 23, alleging he agreed to work cheaply based on false claims of the film's weak earning potential. Quaid says director Ang Lee, not named in the suit, said, "We have very little money. Everyone is making a sacrifice." Yet Brokeback earned more than $70 million at the U.S. box office despite costing a mere $14 million. Now Quaid is seeking at least $10 million in damages. Says Lee's rep: "I've never heard of such a ridiculous lawsuit." Quaid, who didn't reveal what he was paid, had no comment.

On March 23 in L.A., a request filed by Pamela Bach Hasselhoff March 6 for a restraining order against husband David Hasselhoff was unsealed, revealing her allegations of domestic violence. According to court papers, Bach, 43, claimed that the former Baywatch star, 53, broke her nose prior to December 2005 and verbally abused and physically threatened her on several other occasions. Hasselhoff, who has two teen daughters with Bach, is seeking to end their marriage after 16 years (PEOPLE, January 30, 2006). "David categorically denies that he has engaged in the conduct alleged by his wife," says Hasselhoff's lawyer. "He says, 'The only person who broke my wife's nose is her plastic surgeon.'"

Designer Roberto Cavalli was convicted of tax evasion and sentenced to 14 months in jail March 23 in Florence. Cavalli, 65, wrote off nearly $2.8 million of construction costs on his mansion (including installation of a pool, helicopter landing pad and a gym) as business expenses. Cavalli testified that the villa is "my workplace, it's my office, it's ... where I have fashion shoots," but the court disagreed. Cavalli will appeal the decision.

Hee Haw's amiable cohost Buck Owens, 76, died of heart failure in his Bakersfield, Calif., home. A honky-tonk hit machine, Owens had more than 20 No. 1 country singles. Fans ate up his cornball shtick on Hee Haw in the '70s, and he became a Country Music Hall of Famer in 1996. Says pal Dolly Parton: "He was a good guy. He influenced people like Dwight Yoakam, and I always admired his business sense. He'll be missed."

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