Before filming his scene Grant hits his head on a camera boom. Oops.
While showing off his impressive jumping skills though, the actor suffered a bit of an accident as he hit his head on a microphone boom, with the star seen wrapped up in a blanket and being attended to by crew members.
“I hope the fans who treasure the character are as excited as we are by what costume designer Colleen Atwood has achieved with this latest version of The Flash’s iconic suit,” David Nutter, the director and executive producer of the show, said in a statement this week.
The CW series will tell the story of how scientist Barry Allen becomes The Flash, with Gustin taking on the role of the superhero made famous in DC Comics.
Watch a clip of Grant in action below, and check out more pics of Grant in action while filming The Flash in the gallery above.