A new Crisis on Infinite Earths set photo has emerged, revealing Burt Ward in his old Robin colors for the highly-anticipated Arrowverse crossover. The ever-expanding CW/DC universe debuted with Arrow all the way back in 2012. It has since spun-off to include The FlashLegends of Tomorrow, and Supergirl. An annual team-up of the combined heroes has become a staple in the last few years. 2018 saw them unite (sans Legends of Tomorrow) for Elseworlds, and to halt the world-ending threat of a cosmically-empowered John Deegan. The saga proved to be merely a test, however, with The Monitor preparing them for an even bigger, impending crisis.

Shortly after the episodes, Arrow star Stephen Amell confirmed that this year's event would be based on Marv Wolfman's seminal 1985 storyline and that it would air over five hours. Wolfman himself had a hand in the scripts, co-writing with showrunner Marc Guggenheim. As well as the established heroes, the crossover will also see the cast of Black Lightning officially join the fold for the first time. After appearing briefly in Elseworlds, Ruby Rose's Kate Kane will play a more central role in Crisis on Infinite Earths, with an episode of Batwoman season 1 serving as one of the crossover's episodes.

Related: Flash Dies In Crisis On Infinite Earths, Confirms Showrunner

The Endgame-level event will also see a host of stars from various DC adaptations join in on the action. Ward was confirmed to be one of them earlier in the year. Thanks to Twitter user Hollywood North Buzz, fans can now get a glimpse of him on-set in Vancouver. Ward was, of course, a star of 1966's Batman series (and subsequent movies), playing Dick Grayson (aka. Robin) to Adam West's Bruce Wayne (aka. Batman). He has since voiced the role in numerous animated outings. Although dressed in everyday attire, the colors perfectly align with his old Robin costume. The full post can be seen in the space below.

Whether Ward will be playing an older version of his past character, or a different iteration altogether, has been the subject of speculation. Whatever the case, him being seen walking a dog is sure to excite hardcore DC fans. After all, the look and breed of the dog bears a striking similarity to Ace the Bat-Hound. The canine character was created by Bill Finger and Sheldon Moldoff in 1995. Inspired by the success of Krypto (who can currently be seen on DC Universe's Titans series), Ace the Bat-Hound often served as an additional crime-fighting partner to the dynamic duo. If true, this would make his first live-action appearance.

Ward will join the likes of Tom Welling, who will reprise the role of Smallville's Clark Kent (aka. Superman) alongside Erica Durance as Lois Lane. Though the story itself remains firmly under wraps, a number of set photos have emerged since the saga began filming. Most recently, fans were treated to the first look at Tom Cavanagh as Pariah. Similar to Kevin Conroy -  who is set to play an aged Bruce Wayne rather than Batman - it's unlikely that Ward will official suit up for the action. Regardless, his mere presence has been enough to excite fans. As such, the first glimpse of him in the role is sure to take that excitement to a new level.

More: Arrowverse: Why Crisis On Infinite Earths Is So Important

Crisis on Infinite Earths will begin on The CW on December 8

Source: Hollywood North Buzz/Twitter