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get to know our team

Tamlyn Shusterman

Tamlyn has spent the last decade mentoring Broadway hopefuls & their parents by guiding them through their careers and college aspirations by facilitating connections to the best training plans, performance opportunities & industry connections. A former Broadway performer, Tamlyn is also a graduate of University of Michigan BFA in Musical Theater and Columbia University MA in Arts Administration (thesis on how to parent a child with talent).  Tamlyn finds joy in helping clients navigate the complexity of college auditions and professional careers by providing organizational & moral support to help them realize their goals & reach their individual potential as both artists and human beings.


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Tamlyn's trifecta specialty is dance where she customizes each students dance training needs and specializes in musical theater dance styles utilizing an array of original Broadway & college audition choreography.  Tamlyn coaches a select number of students on their dance audition preparation, prescreens and choreographs to each students strengths.

Broadway: 42nd STREET, DAME EDNA, THE ROYAL TOUR; Broadway National Tour: CATS; Radio City Rockette (4 seasons at Radio City Music Hall); David Letterman Dancer/Dance captain/actress & numerous shows for Disney in NYC and Orlando.  Tamlyn is a NYC producer, choreographer & founder of the Broadway Artists Connection in NYC where she has produced dozens of shows bringing together Broadway and aspiring artists to perform, make industry connections and give back.

Karyn Overstreet

Karyn is a premire singing teacher and vocal coach that focuses on vocal technique with the student as well as audition prep. She is also known as a “song selection expert”  and hand selects song pieces that enhance the student’s voice, personality, and type. She helps singers with their “unique artist sound". Karyn also works with the student on artist development. Karyn has been behind the table at Unifieds, live auditions for university musical theatre programs in New York and Los Angeles. Karyn is a member of the National Association of Teachers of Singing (NATS).

This season Karyn has two

clients on this coming season of American Idol and The Voice. Karyn Overstreet Vocal Studio has been recognized nationally two years

in a row having winners in the YoungArts National Competition for Voice:


Karyn Overstreet Vocal Studio has been recognized nationally two years in a row having winners in the YoungArts National Competition for Voice: Singer/Songwriter for 2020 and 2021. Her clients have won a total of 18 National Youth Awards in San Diego and San Diego North County for 2021.   Karyn’s clients have broadway national tours, major motion pictures, television, commercials, voice-overs and have signed major record deals. Along with celebrity clients Karyn works with all levels of talent and ages.

Broadway: LES MISERABLES; Broadway National Tours: JEKYLL & HYDE, Barry Manilow's COPACABANA. Karyn has performed multiple Off-Broadway shows at City Center Encores, Carnegie Hall, and has performed leads in regional theatres across the country. Karyn was the TV host for New York’s Metro Guide Channel THE RED HEAD REVIEW and was featured in the film TEMPTATION starring Zoe Saldana, Adam Pascal, & Alice Ripley.  Karyn has starred in shows all around San Diego including Moonlight, Old Globe, San Diego Musical Theater and the Lambs Players. 

Shauna Markey


Broadway & Broadway National/International Tours: A CHORUS LINE, WIZARD OF OZ starring Mickey Rooney, Eartha Kitt and Joanne Worley. She's been a working professional actress in theatre and Tv/Film for over two decades and has starred in approximately eighty national commercials. Hit shows include PARKS AND REC. Shauna has her BFA in Musical Theatre and Acting. She's won prestigious awards as a Director/Choreographer and has adjudicated many top youth awards and talent competitions. You can currently see her clients on hit TV shows, commercials, and on Broadway.


Working with children & teenagers is a great passion of Shauna’s which is why, in 1997, she opened THE STAR YOU ALREADY ARE (formally known as THE BIZKIDZ) to coach kids and teens in TV/Film, commercials, musical theatre, and voice-overs. Through this, she's had the privilege to also teach alongside other outstanding performing arts programs: LA Unified Educational Outreach, Take the Stage Long Beach, The Norris Theatre, Orange County Song & Dance, Musical Theatre West, Center Stage Utah, San Diego Musical Theatre and successfully launched the entire SDMT Academy last year!



In addition to our core team, Trifecta continues to bring in current Broadway stars and working professionals as part of our Guest Artists initiative!


Be sure to check out upcoming Guests Artists and Workshops on our News page!

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