Summary: When Reed Martin and Austin Tichenor directed the non-RSC cast in the premiere of The Ultimate Christmas Show (abridged), Kyle Stoner, Phil Ferrero, and Rafael Manzo were the understudies, and they talk about what it's like to rehearse a script that's still being written, and when improv works and when it doesn't. We'll also hear from Jennifer King, artistic director of Napa Valley Conservatory Theatre, and our own Reed Martin, who shares his understudy adventures. (Length 21:10)