So, we've got a space captain and his right-hand man. Let's check in on the rest of the crew.
Why, here's Janice. If she looks familiar, it's the family resemblance. Janice is Speedy's older sister. If she looks skeptical, it's because she's been hearing Speedy's "brilliant ideas" for most of her life.
50% skeptic, 50% enthusiast, and 100% exhausted is about the mix for Speedy's big sister. When you're dealing with a "jump in and ask questions later guy", like Speedy, there needs to be someone to keep him in check.
Some might think that she's a wet blanket, but when the chips are down, Speedy knows Janice is there for him.