Here's a gentlemen I'd never heard of ... RHP Ben Callahan, a four-game pitcher with Oakland in 1983 after being acquired for Matt Keough. This was probably spring training of that year or 1982, but he was a rare 17-game winner in Class A ball in 1981. He stood 6-7, so I'm guessing he was mighty imposing on the mound.
Sadly, passed away at age 49 in 2007.