The phrase "fellow actor" refers to someone who is in the same profession as an actor. It means they are colleagues or peers who share the same job. Full definition
A low - budget film collaboration with fellow actors John Glover and Gloria Reuben, Macbeth in Manhattan (1999), followed, along with a two - year stint as Gwen Hotchkiss on the daytime drama Passions. (rottentomatoes.com)
Similarly, Krasinski has spoken of how he was inspired by fellow actor Matt Damon who is adept at balancing his home and working life. (emily-blunt.com)
Newman is a likable, millennial raconteur who might remind listeners of fellow actor Jesse Eisenberg. (booklistonline.com)