In the universe of The Tick, Arthur is a pudgy and socially awkward accountant who leaves that line of work to become a superhero. Or at least a sidekick. His moth suit, which permits him to glide through the air, gives him the pretext to become one. His superhero name is . . . Arthur.
He's still a good accountant. He loses his job at the firm only because he won't dress in business attire. He's 1 of 11 notably successful accountants in science fiction and fantasy, including The Bursar from the Discworld universe, Leland Owlsley from Dardevil, and Petyr Baelish from Game of Thrones. You can read about all of them at Tor.