On the heels of its renewal for a fourth season, Legends of Tomorrow has promoted Jes Macallan to a series regular.

Macallan, who plays Time Bureau agent Ava Sharpe, has become an increasingly important presence on Legends of Tomorrow. Though she started off antagonistic toward the Legends, she has since become a love interest for Sara Lance, been promoted to director of the Time Bureau, and learned about her shocking origin as a clone from the future.

Executive producer Phil Klemmer tells EW, “We knew that we wanted Sara to fall in love with someone in season 3, and our challenge was to come up with a character worthy of our fearless captain’s love — and then the second challenge was to find a performer capable of playing that part.

“The door had barely closed on Jes, having just finished her chemistry read with Caity Lotz, that we all turned to each other and agreed that we had found our Ava.”

Klemmer adds, “Her character arc was a bit of a slow burn this season, and yet each episode revealed a new facet of her character. She’s been alternately funny, poignant, engaging, endearing, and kick-ass this season — and yet I know for a fact that we haven’t hit all of Jes’s hidden gears as an actor.

“We are lucky to have a whole new season in which to find them. It’s not every actor who can find the emotional heart of a storyline that features John Constantine, a chicken, and a severed human foot. Thank God we found Jes Macallan.”

Macallan celebrated the news on Twitter:

And speaking of Constantine, Matt Ryan will also be a series regular in Legends of Tomorrow season 4.

Legends of Tomorrow airs its season 3 finale on Monday, April 9 at 8:00 p.m. ET on The CW.