Kao Supassra Thanachat as the impeccably sharp CEO. Instagram: supassra_sp

Born 29 April 1995, age 30. Kao rose to fame through a hit teen series and has since built an extensive body of work across television dramas, series and films.

In Love Design, Kao plays Aokbaeb, the 30-year-old CEO of home-design firm Jinta Architect, precise in every degree of her life. She is clear about her goals, never gives up easily and is exceptionally talented, but behind that strength lies a past full of wounds in both love and dreams. Then she meets Rin, a rising indie architect who slowly gets under her skin, shakes her heart and breaks down her walls.

Jane Methika Jiranorraphat, known to fans as Janeeyeh. Instagram: @janeeyeh

Born 19 June 1999, age 26. Widely known from television and several teen series, her international look and one-of-a-kind charm make her an actress to watch.

In Love Design, Jane plays Rin, a 24-year-old architect who has won competitions and built a portfolio since her student days, earning her the nickname 'Ajarn Rin'. She has a distinct style, dresses unconventionally, thinks outside the box and loves her freedom so much that she refuses a full-time job, even though her near-genius talent has many firms chasing her.

Until Aokbaeb personally asks her to join the project, believing Rin's brilliance will help her company beat its rivals. That project becomes the beginning of a love story and a heated battle in the world of architecture.

Yam Matira Tantiprasut as the past that still haunts Aokbaeb. Instagram: @yammatira

Born 1 October 1996, age 29. With striking looks, an intriguing presence and powerful acting, Yam has delivered many quality performances and is remembered for deep, complex roles.

In Love Design, Yam plays Mind, a 35-year-old architect, former architecture tutor and Aokbaeb's first love. A key partner at Mind Space, a nationally renowned architecture firm, she is brilliant and fiercely ambitious, willing to do anything to get what she wants regardless of the method. In the past she left Aokbaeb with a deep and unforgivable wound.

Fate brings the two back together when their companies compete to pitch for a major project. Will this confrontation clear the air, or reopen old scars?

Friend Torfan Taweema as the cool architect who keeps both secrets and love in her heart. Instagram: @friend.tf

Born 3 February 1999, age 26, 173 cm tall. A tall, cool-looking actress who is actually full of mischief, a contrast that has fans falling for her.

In Love Design, Friend plays Wee, Mind's trusted right hand at Mind Space. Wee is mature, calm and composed, and excellent at solving problems, except her own. Her girlfriend is Turtis, the key secretary at Jinta Architect, Mind Space's fiercest rival, so their love must stay hidden to protect the work they both love.

Palm Paramee Luangnaruemitchai as the petite secretary who hides a secret behind her smile. IG: @ppalm_pr

Born 31 May 2005, age 20, 158 cm tall. A newcomer whose bright, adorable energy leaps off the screen. Despite her age, her talent and pinch-worthy character win fans over instantly.

In Love Design, Palm plays Turtis, a 24-year-old secretary at Jinta Architect and Rin's best friend. Optimistic, gentle, clumsy and always the team's ray of sunshine.

If Wee is black and white, Turtis is pastel. She notices the little details about everyone in the company, what they like and dislike, and quietly looks after them all. Her secret is that she is dating an architect from the rival firm. Even though Wee and Turtis have agreed never to talk about work, can a love that has to stay hidden survive?