Fifty Shades of Grey movie cast team has finally found "Laters Baby" love interest Kate Kavanagh. Universal Pictures and Focus Features has cast Eloise Mumford to play one of the last few if not the last major character in the highly anticipated movie for 2015, according to Variety.

The "So Undercover" star will be playing the character of a confident blond who is working at the Washington State University publication. Kate Kavanagh's character is the one responsible for Anastasia Steele and Christian Grey's meeting.

The billionaire hunk grew fond of Anastasia then asked her to sign a deal based solely on sexual relationship with him.

The Fifty Shades of Grey movie cast, Mumford can easily fit the bill of a socialite, confident blond bombshell.

The 27-year old actress is a Pacific Northwest native who graduated in New York University, she is also an alumni in Atlantic Theatre Company who started out as an understudy for Elisabeth Moss' Broadway Speed -the-Plow.

Fifty Shades of Grey movie cast, Eloise includes direct-to-video comedy "So Undercover" role in her resume, where she played Suzy alongside Miley Cyrus.

The American stage play actress also starred in the ABC paranormal series "The River" for four months then it was cancelled by the network last year.

She also starred in the 2010 indie military comedy "Drones."

Irish model and actor Jamie Dornan replaced "Sons of Anarchy" star Charlie Hunnam last October after the latter dropped out from Fifty Shades of Grey movie cast on September.

Jamie Dornan will be playing the lead role of billionaire sadomasochist Christian Grey opposite Dakota Johnson who will be playing the innocent looking college student Anastasia Steele.

The pair recently posed for the cover of Entertainment Weekly, where Dornan was quoted saying,

"I certainly don't fear it," pertaining to the controversial role that he has to portray.

"I already got a glimpse into working with [director] Sam [Taylor-Johnson] at the test, and I'd met [co-star] Dakota [Johnson] by then. So I had a glimpse into how I felt it would be if I got the part. None of it scared me."

Eloise Mumford on the other hand, will be playing opposite Luke Grimes where Luke will play the role of Christian Grey's brother Elliot Grey.

Other major role in the film will be played by Jennifer Ehle as Carla, Ana's mom and Victor Rasuk as Jose Rodriguez, Ana's photographer friend who's in love with her.

The Fifty Shades of Grey movie cast will be going to Vancouver next week to shoot the film, however one major role in the film hasn't cast yet, Elena "Mrs. Robinson" Lincoln.

No word on who's going to play what seems to be the last major role of the film yet. Watch out for updates here.