Here's a photo that went out watermarked earlier in the week: the network publicity photo of LaMonica Garrett in full makeup as the Anti-Monitor, the villain of the Crisis on Infinite Earths crossover event.
Garrett has previously appeared as the Monitor in The Flash, Arrow, Supergirl and DC's Legends of Tomorrow episodes as part of 2018's Elseworlds crossover. He has also appeared in episodes leading up to this year's crossover.
The Monitors are dual cosmic beings, one from our reality and the other from the anti-matter reality. The latter seeks to consume everything with anti-matter, devouring one universe (and it's corresponding Earth) at a time.
Crisis on Infinite Earths begins with the December 8 episode of Supergirl on The CW.




