The only Browns with 2 or more Kickoff returns for TDs are:

Josh Cribbs 8

Bobby Mitchell 3

Eric Metcalf 2

The only Browns with 2 or more punt returns for TDs are:

Metcalf 5

Cribbs 3

Mitchell 3

Dennis Northcutt 3

Leroy Kelly 3

In terms of yards, here are the Browns career leaders in KO return yards:

Josh Cribbs 8837

Dino Hall 3185

Eric Metcalf 2806

Glen Young 2079

Here are the Browns career leaders in punt return yards:

Northcutt 2149

Cribbs 1697

Mitchell 1550

McNeil 1545

Metcalf 1341

Why do I not remember Glen Young? He played for the Browns from 1984-1988. He returned 87 kicks for 2079 yards which puts him 4th on the career list, and that is all he did, really. He caught only 8 passes in his years with the Browns and returned 3 punts.