Tosin Cole fell out of a cart while filming "Doctor Who".
The 26-year-old actor - who plays companion Ryan Sinclair on the sci-fi show alongside new Time Lord Jodie Whittaker - left his co-stars laughing after he accidentally slipped out of a truck while shooting scenes for "Demons of the Punjab", which aired on Sunday (11.11.18).
In a behind the scenes clip on the show's official Twitter account, Jodie said: "One of the highlights of shooting that scene was midway through one of the takes there was just this massive thud and Tosin fell out of the cart!"
His fellow companion Mandip Gill (Yasmin Khan) also found the ordeal hilarious, as she joked it was the "funniest" moment on set.
Tosin quipped: "It's quite traumatising talking about my past experiences, so if you can move onto the next question now, that would be great ... yeah, yeah it was funny for like five minutes."
It's not the first time the star has had a bad experience while filming "Doctor Who", after he suffered sunstroke while on location in South Africa.
He previously said: "When were in the UK and it was cold there were times when I was like, "Why? Why us? Why are we on this rooftop?"
"So when we went to South Africa I wasn't going to complain ... I was flexin"."
Last month, Tosin admitted he thought fellow star Bradley Walsh was the Doctor, rather than Jodie - who is the first woman to play the part.
He admitted: "I remember thinking Bradley Walsh was the Doctor.
"I was confused. I'd never watched any episodes, I didn't know what a Time Lord was. I wasn't in that world - I don't even watch TV."