Eric Stonestreet was a guest judge during the auditions on Season 15 of America's Got Talent. He filled in for Heidi Klum after her illness. Heidi went to work, but left before the start of the taping with what was subsequently described by sources as a common cold. She stayed home ill Wednesday, with Stonestreet filling in for her. He sat alongside his Modern Family co-star Sofia Vergara, who was a new addition to the show’s judging panel, as well as AGT veterans Simon Cowell and Howie Mandel. 
Eric Allen Stonestreet (born September 9, 1971) is an American actor and comedian. He is best known for portraying Cameron Tucker in the ABC mockumentary sitcom Modern Family, for which he received two Emmy Awards for Outstanding Supporting Actor in a Comedy Series out of three nominations.
Stonestreet first rose to prominence in a recurring role on CSI: Crime Scene Investigation. He has appeared in films and telefilms including; Bad Teacher (2011), Identity Thief (2013), The Loft (2013), and Confirmation (2016). He also provides the voice of Duke in The Secret Life of Pets film franchise (2016, 2019). 
- First act to vote "Yes" to: Xtreme Dance Force
- First act to vote "No" to: Serban Cioca
- First (and only) act to buzz: Rob Messel