Sean Giambrone, Troy Gentile, Hayley Orrantia, Sam Lerner, Wendi McLendon-Covey and AJ Michalka took to social media to remember the actor who portrayed Pops on their ABC comedy. “My heart is broken,” Giambrone tweeted. “I lost a dear friend. Working with George was an honor and some of the happiest moments of my life...What a sweet & wonderful man. He was my confidant & teacher. When he smiled it changed my day. I wish everyone could have met him. Prayers are with the family.” ALSO: Wednesday's Goldbergs episode ended with an In Memoriam video card.