The actress introduces her 4-week-old son to John Slattery and other cast members
Jon Hamm and John Slattery convey their best to their costar and mom of Xander Dane Jones
"We had a horrible superstition that January not being here was bad for us," the show's creator says
The Mad Men star delivered son Xander Dane on Tuesday
The X-Men: First Class star hasn't "had any weird physical side effects" while expecting her first child
"It's something that she's wanted to do and that she's excited to do," Aaron Staton says of his costar
The Mad Men star is expecting in the fall, her rep tells PEOPLE exclusively
The Mad Men star and Saturday Night Live actor had been dating since July
The SNL funnyman also addresses his relationship with Jennifer Aniston
"Nor will he after those comments," the Mad Men actress tells PEOPLE
The SNL star confirms his relationship with the Mad Men actress, and says he now gets photographed a lot more
The SNL star has been romantically linked to her and January Jones recently
Following recent make-out reports, January Jones and Jason Sudeikis are spotted hanging out again
The Mad Men star says "commotion" was too much and left the scene of a car crash
The actor calls the Mad Men actress "just a friend of mine," after the two were linked at a Memorial Day party
"Pirate Radio," set during the swinging '60s of pop music when giants like the Kinks and the Who roamed the earth, was called "The Boat That Rocked" in its original UK release.
The Mad Men actress says her famous ex-boyfriend advised her to quit acting
Her already gorgeous costar is on a secret, pre-wedding diet, she says
The sexy Mad Men star gets frank during an interview with actor Jack Nicholson
The Mad Men actress will participate in a Feb. 1 dive in Bimini
Which came first: the national yearning for an idealized Christmas gathering -- and I do mean Christmas -- in which photogenic, dysfunctional family members reunite in a nonsectarian Christian spirit of tolerance, compassion, and the swapping of perfectly wrapped gifts ...or the Hollywood holiday movies that insist this outcome is universally attainable?