I was talking about this the other day with a friend, and while I didn't really take the time to look it up, I concluded I could not think of any other examples.

Can anyone think of another successful pitcher like Halladay (3.32 career ERA) starting his first postseason game so late in his career (33 years old)?

It's not terribly uncommon, I don't think, for players of his caliber to never make the postseason. But I can't recall one making it so late and finally getting a start.

Any other examples anyone can think of?