
Acting
Sirena grew up around the U.S. and abroad her mother, Margaret Irwin-Brandon, is a harpsichordist and conductor of a Baroque Orchestra, and her father, John Irwin, was a physicist (with a significant stint as a dropped out hippie)-landed ultimately at Sanford University. After time spent at Northfield Mt. Hermon boarding school where she fell in love with theater, she attended San Francisco State University and graduated with degrees in Theater and International Relations. After a successful stint in a popular San Francisco sketch comedy group, she landed in Los Angeles where her knack for voi…
2015

SpongeBob and Patrick's Timeline Twist-Up
as Pffht / Various Incidental Characters (voice)

SpongeBob Squarepants: Kreepaway Kamp
as Lady Upturn / Nurse Helga / Mo / Teen Girls (voice)
A Man Alone
as Therapist
SpongeBob’s Big Birthday Blowout
as SpongeBob’s Mom / Gawky Female / The Kid / Office Worker

Batman vs. Two-Face
as Harleen Quinzel (voice)

Batman: Return of the Caped Crusaders
as Miranda Moore (voice)

SpongeBob LongPants
as Fancy Lady Fish / Kid Fish (voice)

The SpongeBob Movie: Sponge Out of Water
as Computer Voice / Shocked Mob Member (voice)

Justice League: Throne of Atlantis
as Queen Atlanna (voice)

Vitaminamulch: Air Spectacular
as Additional Voice

We Baby Bears
as Internet Commentator #1 / Internet Commentator #2 / Internet Commentator #3 (voice) · 1 ep.

The Patrick Star Show
as Elder Woman / Fly Dancers / Crowd / Dancers (voice) · 1 ep.

Kamp Koral: SpongeBob's Under Years
as Mo (voice) · 1 ep.

The Mighty Ones
as The Queen (voice) · 1 ep.

Apple & Onion
as Commercial Voice (voice) · 1 ep.

Batman: The Brave and the Bold
as Lois Lane (voice) · 1 ep.

So NoTORIous
as Cheryl - Tori's Publicist · 1 ep.

Entourage
as Frida · 1 ep.

Stripperella
as Persephone (voice) · 13 ep.

SpongeBob SquarePants
as Nixie (voice) · 1 ep.