John has three cats: Mia, Keisha, and Sebastian; and one cocker spaniel puppy: Dora.
John is double-jointed in his shoulders and pinky fingers.
He played the part of Lumiere in the Broadway version of "Beauty and the Beast". He started on November 21, 2006 and continued until the show closed on July 29, 2007.
He is one of the youngest puppeteers ever to perform on Sesame Street (he began part-time at 16 and full-time at 18).
At the after-party of his last performance in "Avenue Q," he wore a red Adidas track suit. This was a tongue-in-cheek reference to Idina Menzel's last performance in Wicked in which she wore the same suit.
Sesame Street 4D - Oscar
Love the Hard Way - Jack
Sesame Street 'A Is for Asthma' - Assorted Muppets
Johnny and the Sprites - Johnny
Play With Me Sesame - Ernie
The 59th Annual Tony Awards - Himself
Broadway on Broadway - Himself
The 58th Annual Tony Awards - Himself
Sesame Street - Assorted Roles
Sesame English - Tingo
Neussical The Musical: 2006 Edition
John Tartaglia: (About Avenue Q) It's opened a lot of doors for me,a year and a half ago I was walking down Broadway and looking up at the theaters and thinking, Oh, my God, that's my dream to be there. I was just praying that someday I'd get to walk through the stage door and work at a Broadway theater.
John can be heard in all songs on the Avenue Q soundtrack except for "I'm Not Wearing Underwear Today," "There's A Fine, Fine Line," "The More You Ruv Someone," and "Schadenfreude."