Most prolific onside kick returner ever?

[Dudd]

The quickest td in NFL history occurred three seconds into a game between the Cowboys and Eagles in 2003 on an onside return. As noted, Sehorn did it the year they went to the Superbowl, and I'm sure there have been more that I can't remember off the top of my head. So, while impressive, it's not the first time it's been done.