Madelaine Petsch is still able to "lean on" Lili Reinhart and Camila Mendes for help and support

She told The Hollywood Reporter: "Those two girls are still my absolute best friends in the whole world.

"It can go one of two ways when you shoot a show like that, and it went the right way with us. We all came up together in a really intense environment, having shot up to a world that we'd never been in before: fame and a successful TV show. We had each other to constantly lean on in any scenario."

Madelaine thinks she's fortunate to have worked with two such supportive people.

The actress also revealed that they frequently offer career advice to each other.

She shared: "We still call each other to be like, 'I am doing this movie. Have you heard of this director?' And someone will say, 'Oh, I met with him.' And someone will ask, 'What was your experience like?' We're a unit.

"No matter what we do or where we are, we always support each other. It's rare in Hollywood to find people who don't feel competitive with you and support you so unabashedly, so I'm really lucky to have found my people."

Madelaine previously admitted that she relished her time on Riverdale, and confessed that she found it hard to leave the hit TV show behind.

Speaking to Us Weekly, the actress explained: "As an actor on the show, wrapping was, maybe, one of the hardest weeks of my life.

"The people that I work with - the cast and the crew - are truly some of the most phenomenal people on this planet. I feel very lucky to have spent seven years with them. We pretty much had the same crew for seven years, so I think the hardest goodbye was saying goodbye to our crew."