James McAvoy has revealed that he was subjected to bullying by a co-star during the filming of the miniseries "Band of Brothers" in 2001. Speaking on the television program "Watch What Happens Live," McAvoy recounted an incident that took place on his first day on set, shortly after graduating from acting school.

McAvoy did not identify the individual who bullied him, but he indicated that the actor was part of a cast photo shown by host Andy Cohen, which featured Donnie Wahlberg, Kirk Acevedo, Scott Grimes, Neal McDonough, Philip Barantini, Adam James, Frank John Hughes, and Ross McCall. The cast included several actors who had worked on the project for nine to ten months, often with limited screen time.

McAvoy described how these actors reportedly singled him out, with one man initiating the taunting and rallying others to join. They allegedly stood pointing at McAvoy and laughed at him for approximately three minutes. This treatment came despite McAvoy's role involving a story arc in the fourth episode, which he contrasted with the other actors who mostly had brief lines despite their longer tenure on the show.

"Band of Brothers," a World War II drama produced by Steven Spielberg and Tom Hanks, gained critical acclaim for its detailed portrayal of Easy Company, 506th Parachute Infantry Regiment. McAvoy’s role was a notable early part in his career, marking his professional debut.

No additional comments have been made by members of the "Band of Brothers" cast or production team regarding McAvoy’s allegations.