The 59-year-old actor went on to explain that he met Heard the day he moved to New York City to become an actor, sharing that he was the first person he ever knew to be in the movies.
Heard reportedly underwent minor back surgery Wednesday at Stanford Medical Center, and was staying at the hotel while he recovered.
If the name of John Heard may not tell you much, Peter McCallister's is certainly more familiar. His time on the show ended like it did for many other "Sopranos" actors - with his character's death.
He was dynamic in film for the following decade, playing Tom Hanks' opponent in "Enormous", performer Geraldine Page's child in "The Trip to Bountiful" and in the motion pictures "The Pelican Brief", "Shorelines", "Combatant", "Drifting Rose" and "Night-time".
Playing Peter McCallister in "Home Alone" endeared him to generations of film lovers.
He was nominated for an Emmy Award for guest starring in the television series The Sopranos. His other television appearances included "CSI: Crime Scene Investigation", "Modern Family" and "Entourage".
"I knew it was going to be a cult classic", he told the Baltimore Media Blog past year. "It's recently ludicrous. I thought it would supplant individuals calling me the "Home Alone" father".
L-R: Jerry Ross, John Heard, and Anne Spielberg at The Academy Of Motion Picture Arts And Sciences' Oscars Outdoors Screening Of "Big" on July 20, 2013 in Hollywood, California.
Max Heard, a son from his marriage to Sharon Heard, died in December.
His only surviving child, John Matthew "Jack" Heard, was conceived with ex-girlfriend, actress Melissa Leo. Heard's being convicted of trespassing and telephone misuse in 1997. He said in later interviews that he sought a movie with kids in it so his son, age 5 at the time, could come to the set and have someone to play with.