Liara

This Australian actress best known for her role as Princess Diana in the Netflix drama and would be an excellent addition to the cast and a great pick for Liara T'Soni.

Liara is pretty popular though.

Liara wasn't the only one who knew about the hidden Prothean treasure there; Cerberus was muscling in and wanted to claim the artifact (Javik's pod) for itself.

Liara went with Shepard to Thessia to find a lead in the temple of Athame, and learned the truth: a Prothean beacon was hidden in the temple's main statue.

Very early on, in the first Mass Effect game, our player character Commander Shepard is introduced to Dr. Liara T’Soni.