Jae-Ha Kim

You’ve probably seen — or heard — Alexandra Breckenridge on some of your favorite television series. She portrays Katerina on HBO’s “True Blood” and spent six years doing voice work for such shows as Fox’s “Family Guy” and “American Dad.” Her latest role is playing Moira on the new FX series “American Horror Story,” which is the brainchild of “Glee” creator Ryan Murphy. Born and raised in Connecticut, Breckenridge and her mother moved to California when she was 12.

Born in Canberra, Australia, and raised in Sydney, Alex O’Loughlin’s thick Aussie accent is nowhere to be heard on “Hawaii Five-0,” where he plays the lead character Steve McGarrett. “I heard that some people thought I was American,” says the 34-year-old actor during a break from shooting in Honolulu. “I take that as a great compliment. I try to be as authentic as I can for each role that I take. But once I’m done shooting, I sound like me again. I can’t hide it.” “Hawaii Five-0” airs Mondays on CBS.

In his recently published memoir “Late, Late at Night” ($26, Touchstone), musician-actor Rick Springfield, 61, reveals a dark side that few fans knew about. He tried to commit suicide when he was 17, cheated multiple times on his wife of 26 years and underwent plastic surgery at the ripe old age of 23 in an attempt to look even more youthful than he already did. Springfield, who wrote the book without a co-author or a ghostwriter, exhibits a humorous and poignant touch as he examines the ebbs and flows of his career.

When Jennifer Knapp decides to take time off, she really goes for it. When the 36-year-old singer from Kansas wanted to reassess her life, she took seven years off and spent a good chunk of that time exploring Australia. She didn’t return to the United States until she was good and ready to start recording again. And she announced that she was gay.

Though Jordin Spark’s tours have taken her to many destinations, the young singer has a long list of places she’d still like to visit. And she plans on taking her dog with her, if at all possible.

You’ve probably heard Lenka’s evocative music helping set the mood on such shows as “Grey’s Anatomy,” “90210″ and “Ugly Betty.” Or maybe in a commercial for Old Navy. The Aussie actress, who was once in the same acting class as Cate Blanchett, is currently on a world tour to promote her self-titled album “Lenka.”

When he was a child, actor Matthew Perry said, he had a major crush on Valerie Bertinelli. She was the co-star of “One Day at a Time,” a popular CBS sitcom. Years later, when CBS cast Perry to play the boyfriend of Bertinelli’s character on her new “Sydney” series, he was on Cloud 9. But after he had psyched himself up to kiss the actress, the producers told Perry they were changing his character from her boyfriend to her younger brother.