Lindsay Mendez
(Co-Founder, Actor Therapy, Intensives)

Lindsay most recently won the 2018 Tony, Drama Desk, and Outer Critics Circle awards for her performance as Carrie Pipperidge in the 2018 revival of Rodgers and Hammerstein’s Carousel. She also is a 2019 Grammy Nominee for the production’s cast recording. Lindsay has appeared in numerous Broadway shows including Significant Other, Wicked, Godspell, Everyday Rapture, and Grease. Lindsay is celebrated for her star turn in Pasek & Paul’s Dogfight, which premiered at Second Stage Theater in 2012, where she earned Drama Desk, Outer Critics Circle, and Drama League Awards nominations. Lindsay is a renowned voice and acting coach for artists around the country. Her debut album with jazz pianist Marco Paguia entitled This Time, is available for purchase on iTunes. @LindsayMendez


Ryan Scott Oliver
(Co-Founder, Actor Therapy, Intensives, Biz Class)

RSO was called “the future of Broadway… a major new voice in musical theatre” (Entertainment Weekly) and the “best composer working today without a major production” (Backstage Magazine). Most recently his music and lyrics were heard Off-Broadway in Jasper in Deadland (book by Hunter Foster), which enjoyed a totally sold-out spring 2014 run starring Matt Doyle. He is a Jonathan Larson Grant Recipient, Richard Rodgers Award Winner, Lortel Award Nominee, ASCAP Harold Adamson Lyric Award Winner, a Dramatists Guild Fellow, and the recipient of residencies at 5th Avenue Theatre, TheatreWorks Silicon Valley, Weston Playhouse, Cap 21, and San Diego State University for We Foxes, a commission by Broadway Across America. Additionally, he is the Director of New Musicals at Pace University in downtown Manhattan and the Artistic Director of the Pasadena Musical Theatre Program. His songbook, Music+Lyrics by Ryan Scott Oliver: Vol. 1, was published by Hal Leonard in 2011, and since then he has released three more digitally …Vol.2…For Guys, and …For Girls. Ryan most recently released a concept album of his newest work “Three Points of Contact” in February of 2019. M.F.A. Musical Theatre Writing NYU; B.A. Music Composition, UCLA. @RyanScottOliver


Sierra Boggess
(Actor Therapy, Intensives, Art & Biz)

Sierra was most recently at the Alliance Theater in Atlanta, Georgia, as Danielle in Ever After. Previously she appeared in School of Rock at the Winter Garden Theater. Other Broadway: It Shoulda Been You, The Phantom of the Opera, Master Class, The Little Mermaid  (Drama Desk and Drama League nominations).  London: Les Miserables, The Phantom of the Opera (Royal Albert Hall), Love Never Dies (Olivier Award nomination).  Other NY credits: The Secret Garden (Lincoln Center); Guys and Dolls (Carnegie Hall); Love, Loss, and What I Wore; and Music in the Air (Encores!).  Recordings: School of Rock, It Shoulda Been You, 25th Anniversary Concert of The Phantom of the Opera, Love Never Dies, The Little Mermaid and A Little Princess.  Concerts: Princeton Symphony, BBC Proms at Royal Albert Hall, Lincoln Center’s American Songbook, New York Pops (Carnegie Hall), 54 Below, and internationally across Japan and Australia. Solo album: Awakening: Live at 54 Below.


Peter Duchan
(Actor Therapy, Scene Study)

Peter wrote the book of the musical Dogfight, which won the 2013 Lucille Lortel Award for Outstanding Musical and was nominated for five Outer Critics Circle Awards, including Off-Broadway Musical and Book of a Musical. The subsequent London production was nominated for two Evening Standard Awards, including Best Musical. Other theater work includes Stu for Silverton (Book), Carefree: Dancing with Fred and Ginger (Book; Co-Conceiver), Waitress (Script Consultant), The Other Place (Assistant Director), Not a Genuine Black Man (Assistant Director). His play Lavender Scare was a finalist for the Princess Grace Award. His writing has been developed and/or produced by Second Stage, Lincoln Center Theater, Intiman Theatre, Oregon Shakespeare Festival, Theater Latte Da, Geva Theater, NAMT, NJPAC, etc. He has directed various concerts/cabarets, including Klendez at 54 Below. Film credits include co-writing the screenplays for Breaking Upwards (feature; released by IFC Films) and Unlocked (short; official selection, TriBeCa Film Festival). Honors: Richard Rodgers Award, 2011; Dramatists Guild Fellowship, 2011-2012; Robert Chesley Playwriting Award, 2015.


Alexander Gemignani
(Actor Therapy)

Alexander was most recently seen on Broadway as Mr. Snow (Tony nomination) in Carousel. Other Broadway credits: Sunday in the Park with GeorgeSweeney Todd, (Beadle) Assassins (John Hinkley), and Les Misérables (Jean Valjean). Off-Broadway credits: Sondheim’s Road ShowAvenue Q. New York credits: South Pacific (Carnegie Hall concert), Passions (Rose Theatre with Patti Lupone), Merrily We Roll Along (SymphonySpace). National Tour credits: Sweeney Todd (Sweeney Todd) Film credits: the Producers. Television credits: Great PerformancesLive from Lincoln Center, and The Tony Awards (2004-2006). BFA in Musical Theater from the University of Michigan at Ann Arbor.

Stephen Sposito
(Actor Therapy, Casting Director and Agency Workshop)

Stephen is currently the Associate Director for The Book of Mormon, where he oversees the Broadway company in addition to the first and second National Tours. He previously served at the Resident Director for the Broadway and touring productions of Wicked. Directing credits include the National Tour of Shrek The Musical, The American Theatre Wing Gala, and The Obie Awards. Associate Director credits include the Broadway companies of Cat On A Hot Tin Roof starring Scarlett Johansson, How To Succeed…. starring Daniel Radcliffe, Promises, Promises starring Sean Hayes and Kristin Chenoweth, Scandalous and Shrek The Musical. He is a member of The Society of Stage Directors and Choreographers and a graduate of The University of Michigan.

Kirsten Wyatt
(Actor Therapy; Scene Study; Monologues, Cold Reads and Sides)

Kirsten is an award winning actress who has been seen on Broadway, in theaters around the country and on television.  To date, she’s appeared in nine Broadway shows – the most recent being Annie the Musical where  she portrayed villainess Lily St. Regis.  Wyatt has also been seen on Broadway in A Christmas Story the Musical (Crusty Elf/Mrs. Schwartz), Elf (Santa’s Elf), Shrek The Musical (Shoemaker’s Elf), Grease (Frenchy, 2007 revival), High Fidelity (Anna), The Pajama Game (Poopsie), Urinetown (Little Becky Two Shoes), and You’re a Good Man, Charlie Brown (Lucy/Sally standby).  Favorite regional roles include Agnes Gooch in the Goodspeed Opera House’s production of Mame for which she won a Connecticut Critics Circle Award, Ellie Mae Chipley with San Francisco Opera, Charity in Sweet Charity at the Cape Playhouse, Miss Adelaide in Guys & Dolls at the Great Lakes Theater Festival, Paulette in Legally Blonde at The Cape Playhouse, Peter in Peter Pan at Pioneer Theater and as Dulcie on the national tour of The Boy Friend directed by Julie Andrews. She’s also performed regionally at Baltimore Center Stage, American Repertory Theater, St Louis MUNY, Cincinnati Playhouse in the Park and Alabama Shakespeare Festival. TV credits include Blue Bloods, Naked Brothers Band, As the World Turns and All My Children. Proud graduate of Cincinnati College-Conservatory of Music.  She is the creator and host of the new web series Broadway Nosh. You can also check out her website at or follow her on Twitter @KirstenWyatt.


Adam Chanler-Berat
(Actor Therapy, Intensives)

Adam most recently originated his third Broadway role in Amelie The Musical. Other Broadway credits include Peter in Peter and the Starcatcher and Henry in Next to Normal. Off Broadway credits include Fortress of Solitude at the Public, Fly by Night at Playwrights Horizons, Rent at New World Stages, Zorba at City Center, My Favorite Year at the York. TV/Film credits include Doubt, Elementary, Veep, The Good Wife, and Delivery Man. He has taught at BAA, SFNY and privately.


Ben Fankhauser
(Actor Therapy, Intensives)

Ben was most recently seen as Davey in the Broadway production of Newsies. Previous credits include the First National Tour of Beautiful (Barry Man), The First National Tour of Spring Awakening (Ernst), Newsies (Paper Mill Playhouse), Saturday Night, and more. He is a graduate of Ithaca College.

Chelsea Moss
(Managing Director)

Chelsea is an NYC based actor, singer, dancer, and teacher. Favorite credits include RAGTIME on ELLIS, Fiddler on the Roof, New Dawn, and Curtains. Chelsea has performed in various concerts around NYC, including Feinsteins/54 Below and Symphony Space, teaches in the Children and Teen program at Broadway Dance Center, and recently debuted her cabaret ARE WE THERE YET at the Laurie Beechman Theater. @ChelseaMoss812,

Mathieu Whitman
(Director of Events)

is an actor and singer who grew up in Cranston, RI and currently resides in the Bronx. He attended NYU's Tisch School of the Arts (CAP21 & Playwrights Horizons Theatre School) where he graduated with a BFA. On stage, Mathieu appeared in the national tours of A Year with Frog & Toad and A Christmas Carol, and in the national tour/long-running Off-Bway productions of Pinkalicious! Other favorite roles include A Year with Frog and Toad (Casa Mañana), Charlie Brown (Millbrook Playhouse), The Cradle Will Rock (dir. Zi Alikhan), and Bodey Jenkins in the feature film JUG FACE. Mathieu has appeared in readings/demos for several RSO musicals (Rope; Havana; The Looking Glass Wars); and recently presented his first solo cabaret BE A LION at Don't Tell Mama. In addition to coordinating AT's community social events, Reading series, and our ongoing partnership with Sing for Your Seniors, Mathieu is also the Emcee for the ACTOR THERAPY Concert Series at Feinstein's/54 Below! Find him @mattywhits or

Joe Hornberger
(Director of Social Media)

Off-Broadway: Frankenstein (The Players Theatre). Select regional: Elf (The Fireside Theatre), One Thousand Words (Chicago Musical Theatre Festival), Peter and the Wolf (Lookingglass Theatre/Chicago Symphony Orchestra), and Breath (ArtsEmerson). Joe has also sung in concerts at 54 Below and SymphonySpace in New York City. BFA Emerson College.