1. Mel Blanc 924
2. Tom London 559
3. Edmund Cobb 558
4. Lee Phelps (I) 555
5. Adoor Bhasi 549
6. Bud Osborne 548
7. Prem Nazir 507
8. Frank Ellis (I) 455
9. Oliver Hardy 454
10. Emmett Vogan 452
11. Irving Bacon 451
12. Lee Moran (I) 450
13. Stanley Blystone 445
14. Jack Mower 440
15. Frank Welker 431
16. Wade Boteler 428
17. Victor Potel 417
18. Sung-il Shin 416
19. Jack Richardson (I) 411
20. Frank O'Connor (I) 410
Thanks for compiling that list. I've only heard of a few of them, but I'm sure I'd recoginze a lot of them from old movies.
How to Be Very, Very Popular (1955) (uncredited)