He brings to ICTF nearly thirty-five years of experience acting on Broadway and in the professional theatre. Working alongside such notables as Andrew Lloyd-Webber, Harold Prince and Stephen Sondheim, he was featured on Broadway in Les Miserables (as Thenardier), Gentlemen Prefer Blondes, The Scarlet Pimpernel, Damn Yankees, The Boys From Syracuse, 42nd Street, and The Sweet Smell of Success (as standby for John Lithgow). Allen shared an Emmy Award for his contribution to Passion: Live From Lincoln Center, in which he appeared opposite Patti Lupone. He starred opposite Petula Clark in Sunset Boulevard, opposite Keith Michell in Andrew Lloyd-Webber's Aspects of Love, and with Marlo Thomas in Six Degrees of Separation. He appears in seven feature films including Kissing Jessica Stein, and on television, five episodes of "Law & Order". He has played over 160 roles in regional theatres, as well as many Off-Broadway productions in NY.
His Seattle area appearances include seven shows at the 5th Avenue Theatre: Candide, On The Town, Sunday In The Park With George, Memphis, Cabaret, Into The Woods; and he starred as "Sweeney" in Sweeney Todd (receiving a Footlight Award for Stellar Performance). Cabaret won a prestigious Ivie Award, and Memphis has been nominated for 8 Tony awards. Allen appeared at Benaroya Hall with Marvin Hamlisch in the Sondheim Tribute; in The Clean House and two productions of A Christmas Carol at ACT; in Uncle Vanya and Richard III at Intiman); in Proof at the Tacoma Actors Guild; and in Opus, Temple, and Private Lives for Seattle Repertory Theatre.