Jodie Whittaker was asked to change her "very deep" frown line when she started her career.
The "Doctor Who" actress is grateful she has never been "really impressionable" because she ignored the request and admits the wrinkle is now something she "wouldn't change for the world" because it's proven useful in her work.
She said: "I wouldn't change it for the world and there are a lot of episodes where you're squinting and I think if I didn't have that frown line you wouldn't know it was sunny."
Asked by David Tennant on his podcast if she'd ever change it, she replied: "Would I heck! It's not even vanity and I'm too young.
"I also think it's an undeniable pressure on humanity at the moment to look your best a lot of the time and I'm lucky that my journey through the world of acting has been about screwing my face up and nagging my eyes out.
"It wasn't about being the ingenue; there wasn't that pressure to look a certain way.
"It has been asked though. There were certainly times when I was younger that in certain scenarios there were suggestions that "potentially you might want to think about certain stuff", and it fascinates me.
"I think I was doing a camera test for something and - I will say something, because I can't be arsed with the repercussions of what it was - and someone said [of the line] "It is very deep."
"I don't care, but I think "Thank f**k I wasn't really impressionable." No, no I'm alright, thanks."
And the 36-year-old star thought it was hilarious when she was asked to get some facial hair removed.
She added: "I got asked to get my "tache waxed and I didn't know I had one. It was translated to me in Hungarian, it was so funny.
"I said I would probably be allergic to the wax. I said "Sorry you will just have to colour it in"."
Jodie also revealed she was warned her acting ambitions were "ridiculous" by a school careers adviser so is thankful her parents urged her to ignore the advice.
She said: "My careers adviser at school, whoever that person was who I met for three hours, they said it was a ridiculous notion, in so much as it wasn't secure. Nine out of 10 don't make it.
"But I'm 15, shut up! I went home and my mum was furious."