Back when I was running an ongoing Champions campaign many years ago, I had 14 players with 10 or 11 showing up on any given weekend.
One of the PCs had two Duplicates (with different DEX and SPDs), and another PC had 8 Multiforms* (with different DEX and SPDs), so my speed chart for the PCs alone was 22 characters!
* One was a detective that had been hired to find a missing nurse -- which was another of his forms.