Meet Our Team

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Ezzard Castillo

Executive Director

And I am sure of this, that he who began a good work in you will bring it to completion at the day of Jesus Christ.
~ Philippians 1:6

​Mr. Ezzard Castillo is the Executive Director of RCCS. Serving his 21st year at RCCS, Mr. Castillo looks forward to the amazing opportunities in store for this school year.

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Donna Castillo

Principal / Finance Manager

Mrs. Donna Castillo retired from USAA after 30 years of service. Prior to that, she was a public-school teacher for 7 years. A member of the RCCS Board, she is enjoying retirement by continuing to serve as the Finance Manager and Principal of RCCS. ​

Mr. Marcos Placeres

Administrative Assistant 

Psalm 91; The Soldiers' Psalm

With a heart for serving others, Marcos has dedicated much of his career to supporting at-risk youth, helping students succeed not only academically but also in everyday life. After spending nine years in retail management, he felt a renewed calling to return to his passion—working with children and making a lasting difference in their lives.
Since joining the Warrior Family, Marcos has been grateful for the opportunity to live out his purpose each day. He firmly believes that “children are our future. We must do all that we can to protect and guide them through life and teach them the word of our Savior Jesus Christ.”
A proud veteran, Marcos served 22 years in the U.S. military, demonstrating the same dedication and integrity he brings to his work in education. He attended San Antonio College, where he pursued his love of black-and-white photography.
Outside of work, Marcos enjoys spending time with his wife of ten years and their daughter—whether they’re listening to 80s music or exploring local parks together.

Mr. Larry Romine

 Faculty

"I will instruct you and teach you in the way you should go; I will counsel you with my loving eye on you"
~ Psalm 32:8

Mr. Larry Romine is a seasoned educator with extensive teaching experience across all areas of instruction and an impressive 46-year tenure as a coach. In addition to his professional accomplishments, Mr. Romine has been happily married for 56 years and is a proud parent of two children and three grandchildren.​

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Mrs. Donna Romine

Powerline Program Manager 

"If you lack wisdom, let him ask of God"
​~ James 1:5

Mrs. Donna Romine is a Logos Bible College graduate. As the Powerline Program Manager, she is responsible for implementing the program in RCCS and providing valuable support to the Program in other schools. Outside of her professional duties, she finds joy in gardening and cherishes spending quality time with her grandchildren.
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Mr. Kevin Adams

Dean of Students/Faculty

"I can do all things through Christ who strengthens me."
​~ Philippians 4:13

As the Dean of Students, it is my role to ensure that our Middle and High School students are prepared to face life’s challenges—both present and future. Whether your child plans to attend college, enter the workforce, learn a trade, or serve in the military, we are committed to helping them develop the skills, discipline, and confidence they need to succeed.

​A proud graduate of Wayland Baptist University, Mr. Adams is a wounded warrior and a veteran of the Global War on Terror. His passion for empowering students and his remarkable background make him an invaluable asset to the program.

Mr. Reynaldo Sanchez

Faculty

"I know how to be brought low, and I know how to abound. In any and every circumstance, I have learned the secret of facing plenty and hunger, abundance and need. I can do all things through him who strengthens me"
~ Philippians 4:12-13

A graduate of Our Lady of the Lake University and a retired teacher from Harlandale ISD, Mr. Sanchez will be teaching Social Studies and Art. He is excited to continue sharing his passion for education in a Christ-centered environment.

Ms. Elizabeth Martinez

Faculty

Do things at your own pace. Life's not a race.
~Hebrews 12:1

Elizabeth Martinez recently returned to the classroom after a four-year break and is thrilled to be teaching at River City Christian School once again. She brings a wealth of experience from her years teaching Pre-K3 through 5th grade in Harlandale ISD, SAISD, and a prior year at RCCS. A proud mother of three senior boys at Pleasanton High School—two in the band and all active in soccer—Ms. Martinez is passionate about helping each student discover their unique purpose this year.

​Ms. Rosemarie Garza

Before-and-After School Care

"The Lord is my shepherd; I shall not want. "
~ Psalm 23

Ms. Rosemarie Garza is a dynamic individual with a diverse range of interests. She finds pleasure in watching the History Channel and Animal Planet. In addition, she has a penchant for crafting, listening to music, and honing her culinary skills in the kitchen.