Up All Night “Hey Jealousy” – Don’t Panic, Chris April 5, 2012 News, Up All Night Up All Night “Hey Jealousy” Episode 23 airs Thursday April 5 on NBC (9:30-10 p.m. ET). Episode Synopsis: With Reagan (Christina Applegate) working more closely with Luke (guest star Steven Pasquale), Chris (Will Arnett) starts to show signs of jealousy, but it takes his buddy Reed’s (guest star Will Forte) bad advice to send him into a full-blown panic. Meanwhile, Ava (Maya Rudolph) is surprised to learn that her rival will be competing against her in a 10K run for charity and enlists the help of celebrity trainer Gideon Kirk (guest star Fred Armisen). Jennifer Hall also stars. Show Summary: Christina Applegate (“Samantha Who?”) stars as Reagan Brinkley: loving wife, successful career woman, life of the party and, most recently, mom. Determined not to compromise her career or cool reputation to the clichés of motherhood, Reagan adjusts to life with a baby and returns to work with the support of her stay-at-home husband, Chris (Will Arnett, “Arrested Development”). As Reagan and Chris figure out their new life, self-doubt, sleep deprivation and the pressure of today’s parenting protocols rattle their confidence. What’s more, the endless needs of Reagan’s boss, ambitious but vulnerable talk-show host Ava (Maya Rudolph, “Saturday Night Live,” “Bridesmaids”), threaten to throw Reagan off balance.