It’s difficult, right now, to find the words “Kayli Carter” without the word “breakthrough” nearby. The adjective refers to her brilliant performance in Tamara Jenkins’ PRIVATE LIFE, in which Carter unflappably shines next to her more seasoned co-stars Kathryn Hahn and Paul Giamatti. She talks about the chemistry she had with those three, and about her formative experience with Mark Rylance in the play “Nice Fish” (including a 60 minute audition!), plus how she’s perfectly fine with passing on parts that do not depict young women as fully formed characters.

Kathryn Hahn has joked about her plethora of “best friend or randy crazy lady” roles in comedies like “How To Lose A Guy In Ten Days,” “Anchorman” and “Step Brothers.” But recent projects by Jill Soloway (“Afternoon Delight” and “I Love Dick”) and Tamara Jenkins (the new Netflix film “Private Life”) have cast Hahn in the lead role, and suddenly we have an exciting leading lady who’s much more than a scene-stealer-extraordinaire. She lets us in on a fascinating process she has for getting into the “I” of the character, talks about the road that led to “Private Life” with co-stars Paul Giamatti and Kayli Carter, and cites the Alan Watts quote “You’re under no obligation to be the person you were five minutes ago.”

When Nicolette Robinson made her Broadway debut in September, taking over the lead role of Jenna in “Waitress,” she was not just fond of Sara Bareilles’ hit musical, she had been listening to the cast album cathartically as she went through emotional ups and downs in her own life. This might be part of why I found her “Jenna” so connected to the material, so alive. We talk about what led up to that Broadway debut night, stepping through the complex engulfing that is “Hamilton” (her husband Leslie Odom Jr. won a Tony for the musical), and what her inner actor needs before that curtain rises. (Robinson’s limited run in “Waitress” is through October 28)

The hilarious Taran Killam lets us peek under the hood of his comedic craft in this half hour. He stars in the new ABC series “Single Parents” (premiering September 26th) and the comedy “Night School” (opening September 28th) opposite Kevin Hart and Tiffany Haddish. He’s probably best known for his 6 years on Saturday Night Live. We talk about how that “bootcamp” prepared him for almost anything. But his talent goes beyond comedy. He writes, directs (check out his film “Killing Gunther” on demand), and sings (he was King George III in “Hamilton”). Plus he finally answers a question I have been trying to ask comedic actors since this show began.

Linus Roache has played upstanding characters on “Law and Order” and “Homeland” but he had to plumb the depths and reach the epicenter of narcissism to play Jeremiah Sand in “Mandy,” and it’s a frightening joy to behold. He talks about the draining yet rewarding time bringing this character to life and the guidance and trust he had from director Panos Cosmatos. Plus he answers a listener question about the faith life of his character, King Ecbert, in the TV series “Vikings.”