Bitsie Tulloch Opens Up About Returning as Lois Lane in 'Crisis on Infinite Earths' (Exclusive)

cw crisis on infinite earths superman lois lane
Katie Yu/The CW

The epic, five-episode CW crossover event kicks off with 'Supergirl' on Sunday.

The Crisis is coming -- time to bring back the Superfam!

The CW's epic DC Comics crossover, "Crisis on Infinite Earths" begins on Sunday with Supergirl airing the first episode of the five-part event. Apart from the cast of regular heroes -- which also includes the casts of Arrow, The Flash, Legends of Tomorrow, Black Lightning and Batwoman -- the "Crisis" will also feature several other famous faces from comic canon, including Tyler Hoechlin and Bitsie Tulloch as the Supergirl 'verse's Clark Kent and Lois Lane.

The pair made their debut as Superman and his ladylove during last year's "Elseworlds" crossover, and return this year to help save the multiverse from its biggest threat yet. Complicating matters? They have a new bundle of joy in tow.

"[This crossover] is a little different, personally, because I wasn't six months pregnant this time around," Tulloch recently told ET during a phone interview. "But the main difference, I think, for Lois and for Clark/Superman, is they are new parents, as am I. For the fans, it's going to be really cute. You get to see the two of them being new parents and having to deal with the unpredictability of babies."

The actress said, despite the superpowers, the new parents are handling life with their new baby "about as well as anyone else," a sentiment she can relate to, as she and husband David Giuntoli welcomed a baby girl, Vivian, in February.

"In the beginning, with your first child in just don't really know what to do or how to do it, which is universally something that any new parent could relate to," she added. "There's such a learning curve with babies. What does this cry mean? What happens? Changing diapers, all of that. I think it's just a sort of disorienting and beautiful journey, being a new parent, and I think the fans are especially going to love seeing Superman being a new dad. It's very cute... Tyler was great with the baby."

Lois and Clark have even more on their plate in the "Crisis" crossover, in which the sinister-yet-stoic Monitor, Mar Novu (LaMonica Garrett) has rounded up the multiverse's biggest heroes to try and save every Earth from a powerful, destructive force. Amid masked marvels like the Green Arrow (Stephen Amell), The Flash (Grant Gustin), Batwoman (Ruby Rose), and more, Tulloch explained, Lois is more than prepared to hold her own.

"I think part of the reason I was probably cast as Lois is that I do have quite a lot in common with her, and one of them is likely a sense of being like, 'I got this.' She's overly confident about certain things."

Katie Yu/The CW

The actress described her character's presence in the crossover as "centering," and she gets to team up with another of the team's supportive spouses -- and a fellow journalist -- Iris West-Allen (Candice Patton) over the course of the crossover.

"I think it's always important to have the audience's point of view. For example, somebody who doesn't necessarily have stereotypical superpowers, like the ability to fly or the ability to run really fast or have lasers shooting out of their eyes, but what they have are their hearts and their minds and their intellect," Tulloch explained. "So in that respect, it is very important to have an Iris or a Lois involved... And I think, now more than ever, when journalists are under siege, so to speak, it's important to have these two present and trying to bring light to important situations and make sure that things don't get swept under the rug."

As if the "Crisis" needed even more drama, Tulloch and Hoechlin aren't the only iterations of their characters who will turn up during the five-episode event. It will also feature appearances from Tom Welling and Erica Durance, reprising their Smallville roles as Clark and Lois. Additionally, "Crisis" will welcome special guest stars Kevin Conroy -- the voice of Bruce Wayne/Batman in the Batman: The Animated Series and other Batman properties -- as Bruce Wayne from the future, and Burt Ward, best known for playing Robin in the Batman series.

"I worked with Erica in some capacity, but can't really go into details how," Tulloch teased of her meeting with her Smallville counterpart. "She's lovely."

However, that's not to say that the two are playing the same character. "I wouldn't say anyone was really comparing notes, just because there were a couple of Supermen too, and I think everybody really respects that people are bringing their own individuality and their own interpretation of these characters."

Following the "Crisis," Tulloch and Hoechlin will have another chance to explore life as an onscreen superfamily. It was announced in October that a Superman & Lois series starring the pair is in the early stages of development at The CW. 

"The only thing I can say is that Tyler and I are really excited for it," Tulloch teased. "We have a wonderful showrunner, Todd Helbing, who had also worked on The Flash. Todd's developing it, and when he was breaking down the script for me over the phone, I literally got chills. It's so good and epic and amazing. We're really excited to shoot the pilot."

Check out the broadcast schedule for "Crisis on Infinite Earths" below:

Supergirl – Sunday, Dec. 8, 2019 (8:00-9:00 p.m. ET/PT)

Batwoman – Monday, Dec. 9, 2019 (8:00-9:00 p.m. ET/PT)

The Flash – Tuesday, Dec. 10, 2019 (8:00-9:00 p.m. ET/PT)

Arrow – Tuesday, Jan. 14, 2020 (8:00-9:00 p.m. ET/PT)

DC’s Legends of Tomorrow – Tuesday, Jan. 14, 2020 (9:00-10:00 p.m. ET/PT)