Where You've Seen A Christmas Story Live's Scene-Stealing Chris Diamantopoulos Before

While the whole cast of Fox's A Christmas Story Live brought plenty of holiday cheer into living rooms on Sunday night and generally knocked it out of the park with their performances, there is one character in particular who we couldn't take our eyes off of. Yes, the 11-year-old newcomer who plays Ralphie (Andy Walken) is a dead ringer for the original movie's star Peter Billingsley. And sure, we're still obsessing over Jane Krakowski's Marilyn Monroe moment during the "You'll Shoot Your Eye Out" number. But it's actor Chris Diamantopoulos who really steals the show.

Diamantopoulos pops up as Ralphie's cantankerous, leg lamp-loving father, Old Man Parker. Although the character in the 1983 movie, played by Darren McGavin, is a solid stick-in-the-mud, Diamantopoulos gets to have a little more fun with the role when he unexpectedly busts out a pair of dancing shoes for two of the live musical's numbers. There are fun moments throughout A Christmas Story Live's entire runtime, to be sure, but few are as spectacular as Diamantopoulos's Broadway-style performance alongside an ensemble of sparkly, dancing lamp shades. When you consider Diamantopoulos's résumé, it's no wonder he makes the biggest splash.

The actor appeared as Dr. Pomatter in Broadway's Waitress with Sara Bareilles this year and also boasts stage roles in The Full Monty and Les Misérables. On top of that, he's had a whole bunch of recognizable onscreen roles.

His screen credits include an Emmy-nominated voice performance as the titular rodent in the 2013-2017 animated Mickey Mouse series, as well as other voice roles in Family Guy, Skylanders Academy, and American Dad. He also has 17 episodes on Silicon Valley under his belt (as Russ Hanneman) and played Evan Phinnaeus 'Finn' Woodhouse in the Amazon series Good Girls Revolt. You'll be able to see him next in the upcoming TV show The Dangerous Book for Boys, which is due out in 2018.