The Best Time Dr. Doug Ross Broke Character On ER

Ok, let's be real people — was there ever a better time to watch "ER" than the Dr. Doug Ross era during the 1990s? George Clooney's iconic portrayal of TV's leading heartthrob made him a household name among audiences and helped launch his now-legendary movie career. The actor spent five seasons on the show before departing in 1999. Looking back, it's easy to think that Clooney and the rest of the "ER" gang kept things super serious while filming the NBC medical drama. But like any project, bloopers and jokes were a regular occurrence.

A quick glance at YouTube turns up several different videos showing all the fun times the "ER" cast used to have while filming, with many moments involving Clooney and actor Anthony Edwards as Dr. Mark Greene. But out of all of them, there is one that hilariously stands out.

One of the most liked and talked about bloopers on YouTube features a break in character that comes during Season 3 of "ER." George Clooney's Dr. Ross is speaking with Dr. Greene and Dr. Maggie Doyle (Jorja Fox) about her shadowing Dr. Ross for the day when the slip happens.

Dr. Greene tells the new Dr. Doyle that she'll be following Dr. Ross around. "I was handling my own cases at Southside," Dr. Doyle replies. "Yea, it's your first day and I'd rather you stick with George," Greene says, accidentally saying the wrong name. "Doug...George Clooney, plays Doug Ross," he adds. In response, Clooney looks at the camera and says, "I play Doug and I'm Batman."

At the time of the blooper, Clooney was getting ready to appear as the Caped Crusader in 1997's "Batman & Robin." YouTubers have pointed out how surprisingly happy he looks about taking on the role, despite years of interviews saying he hated it. "In hindsight, I wouldn't brag about that, George," joked one YouTube commenter.