It stars Sunny Suwanmethanon, Davika Hoorne, Violette Wautier and Torpong Chantabubph.

[1] Surattanawee Suviporn (Bo) and Kornpassorn Ratanameathanont (Joyce) of Triumphs Kingdom make cameo appearances as themselves.

GTH's director Banjong Pisanthanakun makes a cameo appearance as a doctor.

Another director, Adisorn Trisirikasem, also makes a cameo appearance as Je's boyfriend.

The score for Heart Attack was composed by Vichaya Vatanasapt at Hualumpong Riddim.