She originated the role of Kim in Miss Saigon in both The West End and Broadway productions, for which she won the Olivier and Tony awards. She has also played both Eponine and Fantine in Les Misérables, again on both sides of the Pond.
Salonga is one of the best-selling Filipino artists of all time.
- Miss Saigon
- Les Misérables
- Flower Drum Song
- Aladdin as Princess Jasmine (singing voice)
- Mulan as Fa Mulan (singing voice)
- Sofia the First : Princess Jasmine and Fa Mulan (singing voice for both)
- Centaurworld: The Mysterious Woman (voice only)
- Pretty Little Liars: Original Sin as Elodie Honroda
- Chronically Killed Actor: Her roles on Broadway fit this, such as both Fantine and Eponine in Les Mis and Kim in Miss Saigon.
- You Look Familiar: She portrayed Eponine in the 10th Anniversary concert gala of Les Misérables. Fifteen years later, she sang the role of Fantine in the 25th Anniversary gala concert, making her the only actor to sing a major role in both concerts.