Laras has been joining Teater Satu since 2008. Playing in almost all Teater Satu performaces, nationally and internationally as well. Ubud Writers and Readers Festival (2012) in “Kisah-Kisah Yang Mengingatkan” written and directed by Iswadi Pratama was one the play which she played in. Reminding Story also was performed in Malaysia international Performing Art Village (2014). In 2016, she played “Kursi-Kursi” by Eugene Ionesco, directed by Iswadi Pratama in Asian Young Director SCOT Summer Festival. Laras Utami also was the first winner in monologue competition with “Bara di hamparan Salju” by Osman Saadi,  adapted and directed by Iswadi Pratama and it was held by Taman Budaya Lampung in 2008. Furthermore, she represented Indonesia to get training and play in “Dionysus” directed by theatre maestro Tadashi Suzuki in Toga, Japan produced by SCOT (Suzuki Company of Toga) and Purnati Indonesia. Laras has been actively teaching English and directing in some high schools in Lampung. In 2015, she directed her students representing Lampung to take part in Festival Teater Remaja at Taman Ismail Marzoeki. She involved in “Gerakan Seniman Masuk Sekolah” initiated by Education and Culture Ministry of Indonesia. In Teater Satu she used to be a project and finance.

Laras bergabung di Teater Satu sejak tahun 2008. Menjadi aktor  hampir di seluruh pertunjukan Teater Satu, baik Nasional maupun Internasional, diantaranya; Ubud Writers and Readers Festival (2012) pada pertunjukan “Kisah-Kisah yang Mengingatkan” Karya/Sutradara Iswadi Pratama, Malaysia International Performing Art Village (2014) “Kisah-Kisah yang Mengingatkan” Karya/Sutradara Iswadi Pratama , Asian Young Director pada SCOT Summer Festival (2016) pada pertunjukan “Kursi-Kursi” Karya Eugene Ionesco, Sutradara Iswadi Pratama.  Juga menjadi juara pertama dalam pertunjukan monolog “Bara di Hamparan Salju”, Karya Osman Saadi, Adaptasi dan Sutradara Iswadi Pratama yang diadakan Dewan Kesenian Lampung pada tahun 2008.

Selain itu, Ia mengikuti penggemblengan dan menjadi perwakilan Lampung dan Indonesia untuk bergabung pada pertunjukan “Dionysus”, kerjasama antara Purnati dan SCOT (Suzuki Company of Toga) di Toga, Japan dan di sutradarai langsung oleh Maestro Teater Tadashi Suzuki sejak tahun 2016-2018.

Selain aktif sebagai aktor, Ia mengajar Bahasa Inggris dan Seni Teater dibeberapa sekolah di Bandar Lampung. Menjadi sutradara di Teater Sekolah mewakili provinsi Lampung  pada Festival Teater Anak di Taman Ismail Marzoeki (2015), Gerakan Seniman Masuk Sekolah (2018) yang diadakan Kementrian Pendidikan dan Kebudayaan Republik Indonesia. Juga beberapa kali menjadi pimpinan produksi dan  bagian keuangan di Teater Satu.