Catherine Bell is a screen beauty with a down-to-earth attitude about aging.

Ask her about it and she cries, “Right now, I’m sitting in a massaging chair where I was waiting for you to call. It felt so good, I almost fell asleep.”

That’s what you get from being in your 40s and a busy working mom of two active kids.

Ask about birthday candles and she says, “I notice the fine lines now. I see a little skin hanging there and think, ‘What’s happening here?’

“My advice is the only time you should use a magnifying mirror is when you tweeze your eyebrows!’”

Bell is one of the beauties of the small screen.

She starred as Lt. Col Sarah “Mac” MacKenzie on the TV series “JAG.” She plays Denise Sherwood on the series “Army Wives.” And her current project is TNT’s upcoming and much awaited “Good Morning Killer” based on the mystery novel by April Smith.

Bell plays FBI Special Agent Ana Gray, an undercover operative tracking down a serial killer. She bonds with the kidnapper’s latest victim and the suspect suddenly changes his pattern. It’s a race to stop him from killing again. The film also co-stars Cole Hauser and William Devane.

It airs Tues, December 13 at 9 p.m. EST.

“I’ve never played an FBI agent,” Bell says of why she loved the role. “I also loved that she’s not a superhero. In fact, she’s quite flawed. She’s a bit dark and gets into bad relationships.

“It’s interesting because all of us have flaws and problems,” she says. “I think women will really identify.”

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