Wonder Woman has officially met Supergirl!
Wonder Woman has landed in National City!
Lynda Carter has officially started her stint on Supergirl, and we have the pic to prove it.
RELATED: 'Wonder Woman' Lynda Carter Is Playing the President on 'Supergirl'
Supergirl herself, Melissa Benoist, took to Instagram on Thursday to share an adorable pic of Carter's first day on set.
"Met a wonderful woman today @reallyndacarter," Benoist posted on Thursday, along with the sweet, black-and-white snap.
Benoist, 27, couldn't have been happier to have the TV legend on set -- and Carter was equally enthusiastic! The Wonder Woman star wasted no time expressing her excitement on Twitter.
"Having so much fun filming Supergirl on The CW with Melissa Benoist!" she tweeted on Friday. "I'm excited!"
Carter, 64, will be playing the president of the United States on Supergirl, appearing in multiple episodes of the upcoming sophomore season. She'll make her debut in episode three.
RELATED: 'Supergirl' Finds Its Superman! 'Teen Wolf' Star Tyler Hoechlin to Play Clark Kent
The series will be adding on several new characters for the upcoming season, including Tyler Hoechlin as Superman.
While the 28-year-old actor is just as excited as Carter to join the cast, he's well aware of the pressure to do right by the beloved character.
"It's such an iconic character, so to see yourself in it, it's kind of surreal," he told ET in June. "I'm not trying to actively make it like or unlike any of the other representations of him. Just trying to do it specific to what I find interesting about the character."
"It's going to be fun," he added.
LOOK: Is Tyler Hoechlin the Sexiest Superman Ever? Check Out His Costume Debut!
Supergirl returns Monday, Oct. 10 at 8 p.m. ET/PT on The CW.
See more on Hoechlin in the video below.