Depends on what his salary is per episode, per show. The various Guilds (Writers, Actor, Director, Producer) all have set rates for which they are to be paid. Depending on shows, actors can be paid anywhere from $50,000 per episode, to more then $500,000 per episode regardless of how many shows they guest on as per stated in their contracts. So, Blake Neely probably gets his same salary per show.
Personally, I liked Laura Vanderoot as Supergirl/Kara. She portrayed the strong, independent character. The new show, I don't feel it. The new show has her being saved practically every episode by her friends and sister. The show feels more like a romantic comedy then a superhero show. I'll be surprised if it gets renewed.