Robert J. Robertson
Executive Director of Operations; Make-up Design Class;


Frankie Marrone
Executive Artistic Director; Acting II Class; Musical Theatre Scene Studies Class; Musical Theatre History Bash Class;

An Alumni of Servite High School (‘03) and Tri-School Theatre, Frankie was honored to return as Executive Artistic Director to this long revered and prestigious educational theatre program.  Working in educational theatre for the past 7 years, Frankie served as the resident choreographer for the musical theatre program at Yorba Linda High School from 2012 - 2017. At Santa Margarita he worked side by side with Tri-School founder Amy Luskey Barth teaching Cabaret, as well as writing and directing several Musical reviews for their Encore song and dance troupe. In 2014 he returned to Tri-School as a long term sub to teach the Acting III/IV class in the Conservatory Program, and the following years structured the curriculum and taught the Musical Theatre Scene Studies class. Occasionally he teaches workshops at the CETA, Jr. Thespian, and Thespian festivals. A graduate of the Boston Conservatory BFA Musical Theatre program with an emphasis in directing, he has directed and choreographed countless productions all over Southern California including the West Coast Premier of Women on the Verge of a Nervous Breakdown. As a cabaret artist he has written, directed, and performed in several cabarets in Boston, New York , and LA, most recently at The Rockwell Table and Stage. As an actor he has performed in plays and musicals at Musical Theatre West, The Candlelight Pavilion Dinner Theatre, The Glendale Centre Theatre, The Banshee Theatre, and Riverside Reparatory Theatre. In 2011 he co-wrote the score for Natalie Portman the Musical! which was selected to perform at the LA Fringe festival. He is the recipient of two 2011 Stage Scene LA Awards for his direction and choreography for The Wild Party. He won again in 2012 for his choreography for Cabaret and in 2014, was awarded an ITL award for his choreography for Godspell. He sends his love to his family for their unending love and support.

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Patty Buehler
Business Manager

An Alumna of Cornelia Connelly High School, Patty Buehler joined Tri-School in the fall of 2009 as Conservatory Manager and in 2016 was promoted to Business Manager. Heavily involved with the Orange County Archdiocese, Patty worked at Holy Family Cathedral, organized countless fundraisers,  and for 6 years headed the merchandise and was an avid team mom for the Rosary High School Basketball team. At Tri-School she continues to organize special events, fundraisers, and trips to the Thespian State Festival, the International Thespian Festival, and New York.


Isaac Gleason
Technical Director; Advanced Technical Theatre Class;


Erin McNally
Acting I Class; Musical Theatre Class; Cabaret Class;


Christina Craig-San Vicente
Intermediate Technical Theatre Class

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Michael Betts
Acting III/IV Class

From performing at Disneyland to working in casting for both Linda Lowy (Grey's Anatomy) and Center Theatre Group, Michael has spent over thirty years in the entertainment industry. He got his start working for Long Beach Civic Light Opera both on and back stage before attending Cincinnati College-Conservatory of Music. He has directed youth productions for the Norris Center for the Performing Arts and spent time on the board of the Huntington Beach Playhouse. He currently works for Musical Theatre West in Long Beach where he oversees the box office and marketing departments. For MTW he also produces their Reiner Staged Reading Series of lesser known or seldom revived musicals. Having been the product of a youth conservatory growing up, he's thrilled to be teaching Acting 3/4 for Tri-School Theatre.


Chelsea Stock
Musical Theatre Dance Class

Originally from San Jose California, she spent most of her adult life thus far on the East Coast. Moving to Boston for college and New York for work she recently relocated back to the west to be closer to family and pursue a career in Film and Tv.  Her Broadway debut was made in The Little Mermaid originating the role of Andrina and understudying Ariel. Eventually she took over the lead role as Ariel and fulfilled her all time dream of starring as a Disney princess on Broadway! Other Broadway Credits include, Baby It's You (Mary-Jane Standby), Sister Act (Sister Mary Robert u/s), Something Rotten (Portia u/s). Regional Credits include, Annie Get Your Gun (Winnie Tate - Goodspeed Opera House,) The Sound of Music (Liesl - Papermill Playhouse,) Footloose (Ariel - Cape Playhouse and North Shore Music Theater,) The Little Mermaid (Ariel - Dallas Summer Musicals,) A Chorus Line (Maggie - Sacramento Music Circus,) Good News (Connie - Goodspeed Opera House,)  Sister Act ( Sister Mary Robert - 5 Star Theatricals.) Since moving to Los Angeles Chelsea has had the privilege of singing back up for several recording artists, and being featured in the upcoming film You Can't Fight Christmas as a gospel vocalist. Chelsea has been a dancer her entire life starting at the age of 2. She graduated with a BFA from The Boston Conservatory and continues to share her love of Music, Dance and Theater with aspiring performers. Chelsea is also a fitness instructor and part owner of Take Flight Coffee with her husband Deaton. 


Scott Kahler
Resident Designer; Beginning Technical Theatre Class;


Katie Carter
Resident Designer


Kathie Ritchie
Volunteer Coordinator

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Maryann Villalobos
Beginning Costume Design and Construction Class; Costume Design and Construction Class; Resident Costume Designer;

As resident Costume Designer at Tri-School Theatre, Mary Ann teaches beginning and intermediate costume design conservatory classes.  She has worked for Tri-school Theatre designing costumes for Damn Yankees (2013), 25th Anniversary Revue: Encore(2013), The Diviners (2013), How To Succeed In Business Without Really Trying (2014), Bad Seed (2014), Stage Door (2014), Grease(2015), Little Women (2015), The Would Be Gentleman(2015), The Addams Family (2016), You Can’t Take It With You (2016), Bye Bye Birdie (2017), The Illiad (2017), The Odyssey and all of Greek Mythology in 99 Minutes or Less, Looking Back/Moving Forward (2018), and  Into The Woods (2018). Her most current project is Tri-School Theatre’s upcoming 2019 Spring musical, Oklahama.  In addition to her costume work, Mary Ann has performed in Claylee’s Dance Academy’s Nutcracker Ballet, and Credo Arts A Christmas Carol musical.  Her experience as a performer was instrumental in developing her talent and passion for costume design and was vital in understanding the unique demands of costuming actors and dancers for the stage.  Prior costume design work include, Anaheim Ballet’s The Nutcracker Ballet (2012) (The Grove Theatre) (The Sandpoint Theatre, Las Vegas) (The Edgewater Theatre, Laughlin Nevada), Summer Intensive Productions (Pearson Park), Anaheim International Dance Festival (The Grove Theatre), Claylee’s Dance Academy’s The Nutcracker Ballet, and St. Bruno’s Children Mission Liturgical Dance wear.

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Joe Collins
Tri-School Faculty Emeritus

Joe Collins has been involved in theatre since his days as a student at Servite (Class of ’73). His interests also include music, history, and art. He holds a Bachelor of Arts in Theatre Arts from California State University, Fullerton. In addition to studying acting, he also directed many student productions. He was involved in the adaptation of literature and poetry into a Readers Theatre format. He also attended and performed at Orange Coast, Cypress, and Fullerton Colleges. He is fortunate to have had the chance to perform in many diverse roles over the years. They have run the gamut from Shakespeare, to Sondheim. Joe also utilized his vocal gifts as a Voice Over artist. He was honored to be a guest voice for the Special Olympics, working with Michael Landon. He did some industrial recordings including a training series for a local phone book company. He has had extensive experience in Community Theatre including Fullerton, San Bernardino and San Gabriel Civic Light Opera Companies. He has appeared with the Depot Theatre in La Habra and Santiago Community Players in Villa Park. His Professional experience includes appearances with the Sacramento Music Circus, Hollywood Theatre Ensemble, Sebastian’s West and Elizabeth Howard’s Curtain Call Theatre. In Directing, Joe staged the Spring Musicals at Marywood High School. He also taught and directed Theatre programs at Sonora and Walden High Schools. He was the resident Acting Teacher/Coach at the Orange County Footnotes Studio. In additions, he directed Mardi-Gras Pageants at the Grand Ballroom of the Disneyland Hotel.  Joe was invited to assist in the formation of the Tri-School Theatre program, which was created by Amy Luskey-Barth, and he has been a part of this program since its inception in 1987. He has served as Guest Director for Mainstage Tri-School performances over the years, including the inaugural production of “Pippin”. Joe has instructed all levels of the program but has most often been at the help of Acting II and Monologues.