Beloved animator and storyboard artist Barry Caldwell has died, according to reports.
Further details of the veteran animator's death remain unclear.
Caldwell, who worked for both Warner Bros. Animation and Disney over the course of his acclaimed career, was behind numerous popular children's films and television shows.
His impressive list of credits include Animaniacs, which aired on Fox between 1993 and 1994, and Pinky and the Brain, which ran for three years following its 1995 debut.
He also was part of the animation team for the 2006 animation Curious George and the 2011 Easter comedy film, Hop.
Other projects that led him to notoriety in the industry included his work as a storyboard artist on The Smurfs, Alvin & The Chipmunks, Clifford the Big Red Dog, Kim Possible, and Tom and Jerry.
Caldwell's death was announced by fellow digital creator Paul Dini, who described his late friend as 'admired' and 'celebrated.'
In a tribute shared to Facebook, he wrote: 'Barry Caldwell was one of the first animation artists I met when I started my career fresh out of school way back around 1980.
'He was also one of the finest artists I ever met, and easily one of the best people. The man's talent as a cartoonist, designer and director was revered throughout the industry and I'll get to that.
'First, I'd rather talk about Barry himself, funny, kind, a genial giant of a guy that you liked from the moment you met him.
'He knew more about cartoons than you or I ever will (trust me on this) yet he was incredibly generous with his time and his talent.
'And my God, could he make you laugh!'
Dini, who worked with Caldwell at Warner Bros and Disney, went on to describe him as a 'great friend.'
'Barry was admired, celebrated and loved by just about everyone, myself included, for many more reasons than I can list here,' he concluded.
'Gonna miss you, pally.'
Tributes have been pouring in for Caldwell.
In another post shared to Facebook, one said: 'Known not just for his talent, but for his creativity, humor, and generosity, Caldwell was praised by fellow creators as "one of the finest artists," someone who could elevate any project he touched.
Alvin and The Chipmunks - The Squeakquel, released in 2009, is among Caldwell's credits
He also worked on the animated comedy film Hop, which premuered in 2011
'Thank you, legend. Rest in peace.'
'Barry was so kind and gracious!' another remembered. 'He was so talented and fun! I enjoyed working with him on Pinky and the Brain!'
'Barry was one of the most talented young artists I met when he turned up at Filmation around 1979,' another wrote.
'His talent only grew with the passing decades. He will never be replaced but will undoubtedly be missed.'