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Our Staff
Cyndi Monroe
Executive Director
Hollee Cool
Artistic Director + Director of Education
Sue Green
Production Manager
Sallie Griffin
Assistant Director of Education
Sallie Griffin is an alumnus of Christian Arts and Theatre, and her personal journey attests to the profound impact this theater can have on its students. With a tenure of seven years as one of CAT's dedicated performing arts educators, Sallie brings both her expertise and heartfelt passion for arts education to the forefront of her teaching.
Sallie's enthusiasm is most palpable when she's working with the children of CAT, where she derives immense joy from nurturing their artistic potential. In addition to her time at CAT, Sallie has had the privilege of pursuing an 18-year professional performance career in Southern California. Along the way, she's had the honor of portraying roles such as Little Edie in Riverside Repertory's production of "Grey Gardens" and Rosemary Pilkington in Candlelight Pavilion's "How to Succeed In Business [...]," among others. Her commitment to the craft and her dedication to nurturing young talent are qualities that she brings to the CAT community, hoping to enrich the experience for all involved.
Sallie Griffin is an alumnus of Christian Arts and Theatre, and her personal journey attests to the profound impact this theater can have on its students. With a tenure of seven years as one of CAT's dedicated performing arts educators, Sallie brings both her expertise and heartfelt passion for arts education to the forefront of her teaching.
Sallie's enthusiasm is most palpable when she's working with the children of CAT, where she derives immense joy from nurturing their artistic potential. In addition to her time at CAT, Sallie has had the privilege of pursuing an 18-year professional performance career in Southern California. Along the way, she's had the honor of portraying roles such as Little Edie in Riverside Repertory's production of "Grey Gardens" and Rosemary Pilkington in Candlelight Pavilion's "How to Succeed In Business [...]," among others. Her commitment to the craft and her dedication to nurturing young talent are qualities that she brings to the CAT community, hoping to enrich the experience for all involved.
Heather Reithmeier
Director of Vocal Eductaion + Private Lesson Coordinator
Heather is thrilled to be joining CAT Corona's staff in the roles of Director of Vocal Education, Director of CAT Chorale, and voice teacher. Mrs. Reithmeier brings a long history of experience as an award-winning classical soprano and more than 15-years' experience as a vocal educator in private and public schools, and in higher education. Currently, Heather is on the faculty of the Orange County School of the Arts, Classical Voice Conservatory where she has designed and taught classes for middle school and high school singers and teaches for the Patrick and Mary Dirk Vocal Scholarship Program. Heather continues to nurture her own passion for singing and performance and is the resident soprano at Tustin Presbyterian Church.
Heather is thrilled to be joining CAT Corona's staff in the roles of Director of Vocal Education, Director of CAT Chorale, and voice teacher. Mrs. Reithmeier brings a long history of experience as an award-winning classical soprano and more than 15-years' experience as a vocal educator in private and public schools, and in higher education. Currently, Heather is on the faculty of the Orange County School of the Arts, Classical Voice Conservatory where she has designed and taught classes for middle school and high school singers and teaches for the Patrick and Mary Dirk Vocal Scholarship Program. Heather continues to nurture her own passion for singing and performance and is the resident soprano at Tustin Presbyterian Church.
Shawna Rumbaugh
Operations Manager
Shawna is passionate about the performing arts and has been involved in many productions with various theater companies around the Inland Empire. She is a mother to three girls, whom she is proud to homeschool.
Shawna is passionate about the performing arts and has been involved in many productions with various theater companies around the Inland Empire. She is a mother to three girls, whom she is proud to homeschool.
Mike Mulligan
Technical Director
Mike is THRILLED to join the expanding CAT family as Technical Director! Some past partnerships include designing for Julie Taymor, Tommy Tune, world famous theme parks, multiple CLO’s and regional theaters, commercials, and live events! Entertaining is one of his first loves and every so often, jumps back onstage with his amazing wife Kristin, and maybe someday, his two wonderful children Pepper and Ford!
Mike is THRILLED to join the expanding CAT family as Technical Director! Some past partnerships include designing for Julie Taymor, Tommy Tune, world famous theme parks, multiple CLO’s and regional theaters, commercials, and live events! Entertaining is one of his first loves and every so often, jumps back onstage with his amazing wife Kristin, and maybe someday, his two wonderful children Pepper and Ford!
Kristin Mulligan
Social Media Manager
With more than 20+ years in the professional entertainment industry as an actress and vocalist, Kristin is excited to be joining CAT using her other talents in the world of media and design! Kristin has extensive experience as a graphic designer in the theater world, having created album covers and websites for some of your favorite Broadway artists! Currently, Kristin is a media producer of educational content for the University of Massachusetts Global, where she not only gets to create educational videos, but is able to use her voiceover and on-camera talents as well.
With more than 20+ years in the professional entertainment industry as an actress and vocalist, Kristin is excited to be joining CAT using her other talents in the world of media and design! Kristin has extensive experience as a graphic designer in the theater world, having created album covers and websites for some of your favorite Broadway artists! Currently, Kristin is a media producer of educational content for the University of Massachusetts Global, where she not only gets to create educational videos, but is able to use her voiceover and on-camera talents as well.
Gioia Cali
Office Assistant
Gioia, a proud CAT alum, is excited to now be part of the staff! She cherishes the sense of community and family that CAT brings to musical theatre. Passionate about the technical side of productions, Gioia is looking forward to helping with The Lion Club. During her time as a performer at CAT, she gained invaluable skills from her teachers, and now she's eager to continue learning as she works alongside them. As a musical theater performer, her favorite roles include Olive in The 25th Annual Putnam County Spelling Bee and Rosemary in How to Succeed in Business. When she's not at CAT, you can find her working at her family's restaurant or indulging in her love for crafting!
Gioia, a proud CAT alum, is excited to now be part of the staff! She cherishes the sense of community and family that CAT brings to musical theatre. Passionate about the technical side of productions, Gioia is looking forward to helping with The Lion Club. During her time as a performer at CAT, she gained invaluable skills from her teachers, and now she's eager to continue learning as she works alongside them. As a musical theater performer, her favorite roles include Olive in The 25th Annual Putnam County Spelling Bee and Rosemary in How to Succeed in Business. When she's not at CAT, you can find her working at her family's restaurant or indulging in her love for crafting!
Our Class Instructors
Our Private Lesson Instructors
Madisen F., Teacher
CAT is for kids with dreams who want to express themselves and be who they are
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