Grey’s Anatomy star Kate Walsh has been dating Alex Young, a production co-president at 20th Century Fox, reports People.

His blockbuster credits include X-Men: The Last Stand and Fantastic Four.

Kate, 39, first stepped out with Alex for an April 21 lunch date at the Mustard Seed Cafe in Los Angeles and then again at an April 28 fund-raiser for Barack Obama also in L.A.

BTW, what did you think of last night’s Grey’s Anatomy spin-off episode?

Kate Walsh, aka Dr. Addison Montgomery, sheds her scrubs and hits up the NYC’s Fashion District on Thursday.

Earlier in the morning on Live with Regis and Kelly!, the sassy redhead looked absolutely gorgeous chatting up the Grey’s Anatomy two-hour special tonight and her spin-off series.

There were, unfortunately, no mentions of her current boy toy Alex Young or the official name of her spin-off series. Watch the video below!

You saw pictures of Kate Walsh kissing her new boyfriend Alex Young, a production co-president at 20th Century Fox, on Saturday afternoon in Los Angeles.

Now you can see it all over again… with video!

Check out the footage below of the 39 year-old Grey’s Anatomy spin-off star’s PDA-filled afternoon at the Mustard Seed Cafe and in her boy toy’s Porsche!

You can kiss those Dave Annable (Brothers & Sisters) rumors out the window, there’s a new boy toy in town!

Sassy redhead Kate Walsh, aka Dr. Addison Montgomery, finds love in the arms of a Alex Young, a production co-president at 20th Century Fox, on Saturday afternoon in Los Angeles.

The 39 year-old Grey’s Anatomy star, who recently took out her bangs, spent the morning at Radford Hall for a personal meeting.

The new dirty blonde beau then met up with Kate for lunch at the Mustard Seed Cafe (Rachel Bilson just ate there on Thursday).

Kate was not shy about kicking up her feet into her man’s lap in between affectionate kisses. The lovebirds took their PDA-fest to the next level in his Porsche, where things looked like they got hot and heavy!

“We’ve been together for a while and he’s just a dreamboat,” Kate has said. “He’s my man.”

25+ pictures of Kate Walsh and her new rumored boyfriend inside… More Here! »

Jessica Alba helps host this year’s Step Up Women’s Network toast held in Forbes Penthouse Suite at the Beverly Wilshire Hotel on Thursday night in Los Angeles, Calif.

Grey’s Anatomy star Sara Rameriz was one of the four women honored for her dedication to strengthening community resources and philanthropic impact in the lives of women and girls.

Kate Walsh (Grey’s Anatomy), model Devon Aoki and Melissa George (Alias) were some of the other celebrities who attended the event.

30+ pictures inside of Jessica, Kate, Devon, Sara, and Melissa… More Here! »

A number of Grey’s Anatomy cast members turned out for The GLAAD Media Awards 2007 at the Kodak Theatre in Los Angeles on Saturday night. The show was awarded outstanding individual episode for “Where the Boys Are.”

Kate Walsh looked bangin’ with a new set of bangs and arrived with rumored flame Dave Annable from Brothers & Sisters (it picked up the outstanding drama series award).

Katherine Heigl rocked out a Saturday Night Fever-style white suit by Armani. And Sara Ramirez looked like her curvaceous sexy self!

T.R. Knight opened the show saying, “For gosh sakes, I’m very honored to be here. … I’m angry at the inequality we face every day. I hope I can turn that anger toward our fight to be respected as equals.” *cough* Isaiah Washington *cough*

Private Practice, the working title for the Grey’s Anatomy spin-off, is kicking off with it’s very own 2-hour Addison spin-off episode in May. The subsequent two episodes of Grey’s won’t feature spin-off star Kate Walsh .

The Private Practice cast known so far: Kate Walsh (Dr. Addison Montgomery), Timothy Daly (Pete), Taye Diggs (Jackson), Amy Brenneman (Violet), Chris Lowell (Dell), Merrin Dungey (Naomi), Bellamy Young (Kathy) and Jane Clark (Nurse).

Previous TV show affiliations: Lowell (Veronica Mars), Brenneman (Judging Amy), Daly (The Nine) and Adelstein (Prison Break).

Grey’s Anatomy episode “The Other Side of This Life” airs on Thursday, May 3 @ 9-11PM ET/PT on ABC. Here’s are some known tidbits:

• Kate Walsh just filmed this Porsche scene on Wednesday, and there’s already a promo picture for it!
• The bridesmaid dress scene was filmed last week for Katherine Heigl, Sara Ramirez, and Ellen Pompeo. Promo pic here.
• Meredith gets slapped by someone close to her (from the pictures, it looks like her father). Sniff.
• Addison will be reunited with her god-daughter, daughter of Addison’s best friend (Merrin Dungey)
• As Meredith continues to bond with her stepmother, Susan, Cristina reluctantly plans her wedding with the assistance of her mother, Helen, and Burke’s mother, Mama Jane.
• Derek must perform emergency surgery on Ava/Jane Doe, as Alex continues his unfailing bedside manner with her
• Addison takes temporary leave from Seattle Grace and makes a road trip to Los Angeles in order to visit some old friends from medical school.

40+ Grey’s Anatomy spin-off spoiler pictures inside… More Here! »

Redheaded beauty Kate Walsh, aka Dr. Addison Montgomery, was spotted filming a scene for Grey’s Anatomy… or her Grey’s Anatomy spin-off.

Kate, 39, shot her scene while sitting in a dark red Porsche Speedster on Wednesday in Malibu, Calif.

During a break in filming, Kate sent emails on her Blackberry while walking along Zuma Beach in her Ugg boots.