McCarthy played the now-former White House press secretary four times last season on 'Saturday Night Live.'
The Duke and Duchess of Cambridge are reportedly planning a party at home for their little guy, who turns a year older on Saturday.
Simpson's last day behind bars is in October.
ET caught up with Bernthal and Deborah at San Diego Comdaic-Con on Friday.
ET caught up with the 'Guardians of the Galaxy Vol. 2' stars at San Diego Comic-Con on Friday.
'Abby Tells All,' the 'Dance Moms' star's pre-prison interview special with Jedediah Bila, airs July 25 at 9 p.m. ET on Lifetime.
ET caught up with the Formula E driver at the New York City ePRIX, where he partnered with VISA to launch a new cashless payment initiative.
ET caught up with Chloe Lattanzi, 31, at San Diego Comic-Con, where she opened up about her mom's battle with breast cancer.
The 53-year-old Australian model is the ultimate beach babe.
ET spoke to Sam Heughan, Caitriona Balfe and their co-stars about their highly-anticipated season three at the San Diego Comic-Con on Friday.
ET chatted with Melissa and her mom, Paula Hart, about their new project at San Diego Comic-Con on Friday.
The 'My Little Pony' star opened up to ET about bringing his sons, Samuel Kai, 8 and Alexander, 9, with ex Naomi Watts to the San Diego event.
ET caught up with Olivia and the rest of her 'LEGO NINJAGO Movie' co-stars at San Diego Comic-Con on Friday.
The reality star had a wardrobe ordeal on Thursday night before attending a party for Balmain.