Heather Graham looks effortlessly radiant as she joins Shanina Shaik and Brooks Nader at L'Agence Holiday Dinner in Los Angeles

Heather Graham looked effortlessly radiant as she joined Shanina Shaik and Brooks Nader at L'Agence Holiday Dinner in Los Angeles.

The Austin Powers star, 54, looked radiant as she arrived for the elegant dinner held at a private residence in LA on Tuesday. 

Heather displayed her trim figure in a pair of ruched leather skinny trousers, which she paired with a white pleated open-neck blouse. 

She completed smart-casual ensemble by throwing over a fitted black blazer and sported a pair of silver metallic heels. 

The actress accessorised her look with a small black clutch bag and her golden locks were styled in ringlet curls. 

Meanwhile Australian model Shanina, 33, looked effortlessly chic as she attended the dinner in a black suit-style gown.

Shanina's button-up dress featured thick capped sleeves and a double-breasted suit jacket-style front.

She completed the look with a simple pair of black stilettos and her dark tresses were slicked back into an up-do. 

Shanina was glowing in one snap at the event as she sat at her table place, across from a Tiffany jewellery bag, and glanced over her shoulder. 

Sports Illustrated Swimsuit model Brooks, 27, opted for a racier ensemble for the classy dinner in LA. 

Brooks donned a daring high-necked sheer lace blouse, through which her breasts could be seen.

She paired the blouse with baggy black satin wide-leg trousers, which were complete with a gold chain belt. 

Brooks finished off her ensemble by tying her fair hair into a pony tail and sporting a pair of spectacles, accessorising with an array of gold jewellery. 

Also in attendance was American actress Jamie Chung, 41, who turned heads in a striking purple power suit. 

The Grown Ups star oozed sophistication in a dark purple tweed suit, complete with wide-leg tailored trousers. 

She paired the suit with a lilac turtleneck blouse and gold chain necklace, as well as bejewelled striped stilettos. 

Suits actress Abigail Spencer, 43, also made an appearance at the elegant dinner, showing off her trim legs in a pair of leather trousers.

Abigail paired the Capri-style trousers with a suitably festive black sparkly cardigan and finished with an oversized black coat. 

She accessorised with a black and gold shoulder bag and sported black stilettos, as well as wearing her jet-black locks down in loose waves.   

Heather's appearance at the dinner came after she explained why she publicly shared that she hasn't spoken to her parents in 30 years.

She had previously told the Wall Street Journal in August, 'I stopped talking to my parents when I was 25, and I'm estranged from them now.'

In an interview with People in October, she explained, 'I mean, it is a little vulnerable to talk about in an interview. 

'And at the same point, I know that there's a lot of other people who are going through something like it, so I guess I just feel like being honest about my life and not pretending that everything is always fantastic.'

Revealing that she doesn't regret the decision to share the family rift with the world, she added: 'I'm okay just being who I am.'

And she noted she 'didn't get into all the details in the article' about 'why I don't talk to them, but I have very great, very wonderful friends. And so that is a really lucky thing to have in my life.'

Heather wrote, directed, and starred in the film Chosen Family and speaking on social media platform Letterboxd, she discussed feeling isolated in her professional and personal lives.

'Maybe that's a theme I relate to in my life as well as my work, is kind of feeling alienated, looking for your family,' she explained in a teaser shared to Instagram this week.

The Hangover star added, 'I definitely feel like there's people I've met in my life that I'm not related to that feel like they're my family.'

'And I can relate to that search as well,' she said.