Danny Trejo?
5 foot 6 inches tall, and 74 years old.
That Danny Trejo? Way too short and way, way too old.
Hell no. I've seen what SUPERGIRL does with its F/X: no way Trejo doesn't look like a little sad clown on that show.
KRYPTON is vastly superior to SUPERGIRL in all terms of production value, and most aspects of storytelling in general.