Rob Gibbs, a story artist, writer and director who contributed in many Pixar films, including Toy Story 2, Monsters, Inc. Finding Nemo, Up, Wall-E, Inside Out and Onward, passed away recently, at 55. His cause of death is unknown as of now.

His recent work credits include the upcoming Disney+ series, Monsters at Work and animated movie Hump. Rob was serving as co-director on the movie, currently in preproduction and featuring Simon Pegg and Stranger Things star Gaten Matarazzo. He had first joined Pixar back in 1998 and went on to create several acclaimed productions.

Gibbs attended Palomar College and CalArts and did animation for FernGully: The Last Rainforest (1992) and Cool World (1992) before spending five years in story and visual development at Walt Disney Feature Animation, working on Pocahontas (1995), The Brave Little Toaster to the Rescue (1998) and Fantasia 2000 (1999).

He is survived by his daughter Mary, who was the voice of Boo in several Monsters, Inc. projects.