In an interview with Katie Couric, the Good Will Hunting star explained how integral Robin was to his and Ben Affleck's success.
“Ben and I owe everything to him,” the 43-year-old actor revealed. “He said yes to [Good Will Hunting] and he got it made. I could never thank him enough. I look around at the life I have and how blessed I feel, and so much of it started with him.”
Matt and Ben co-wrote the 1997 Oscar-winning film, which went on to win two Academy Awards for Best Original Screen Play and Best Supporting Actor (Robin Williams).
Read more: Robin Williams' most memorable moments
Matt also proclaimed that the comedian is the funniest man he’s ever met, noting, “He was the guy who, when the crew was flagging, would stop everything and do 20 minutes of stand-up off the top of his head that literally had everyone on the floor and we were like, ‘Ok, let’s get back to work.’”
The star's final words on Robin, who tragically took his own life in August, were nothing short of moving. “I think that is what I carry with me…the joy he brought in my life,” stated the father of four.