
Acting
Born September 26, 1977 · Gresham, Oregon, USA
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 voices and accents were quickly put to use in the world of animation. This ultimately brought her to her successful career as a voice director in animation (thanks to her mentor Andrea Romano!) garnering her an Emmy nomination in 2021.

SpongeBob and Patrick's Timeline Twist-Up
2025

SpongeBob Squarepants: Kreepaway Kamp
2024
A Man Alone
2024
SpongeBob’s Big Birthday Blowout
2019

Batman vs. Two-Face
2017

Batman: Return of the Caped Crusaders
2016

SpongeBob LongPants
2016

The SpongeBob Movie: Sponge Out of Water
2015

Justice League: Throne of Atlantis
2015

Vitaminamulch: Air Spectacular
2014

Planes
2013

Superman: Unbound
2013
The Longer Day of Happiness
2012

Spongebob’s Runaway Roadtrip
2011

Can I Be Your Bratwurst, Please?
2008

Electric Apricot
2007

Holly Hobbie and Friends: Christmas Wishes
2006

The SpongeBob SquarePants Movie
2004

Spongebob Squarepants: Christmas
2003

The Trip
2002

The Sky is Falling
2001