Actor Peter Spellos, who starred as Gus American Dreams and voiced Skye-Byte in the animated Transformers series, has died at age 69.

TMZ reports that his friend and power of attorney, Jennifer Smith shared the news today (Nov. 19). Spellos had been battling pancreatic cancer. He passed away early this morning at Franciscan Hospice House in Indianapolis, IN.

“He was loved and cared for and surrounded by people during his final days,” she shared.

Aside from American Dreams and Transformers, Spellos has over 150 acting credits. The star began working in film in the early 70s and earned guest roles in sitcoms such as Growing Pains, The Wonder Years, Married… With Children, and ER. Spellos also had small parts in major blockbusters like Men in Black II and City of Angels.

Peter Spellos Starred in Over 150 Major Hollywood Productions

The New York native had recently relocated to Indianapolis, where he hosted acting and improv comedy workshops. Prior to that, Spellos had spent 35 years teaching classes on both coasts, according to his personal website. He had also become a fan favorite on the comic-con circuit.

Peter Spellos is survived by his brother, James Spellos. James told TMZ that Peter will be cremated, and his family will hold an online memorial event for his fans.