The man who replaced Ron Perlman was not Joe Irwin.

It was "Shotgun" Tom Kelly. Where did Wikipedia get Joe Irwin from?

http://kearth101.cbslocal.com/2013/04/15/k-earth-101s-shotgun-tom-kelly-to-receive-the-2496th-star-on-the-hollywood-walk-of-fame/

http://www.nab.org/documents/newsroom/pressRelease.asp?id=3174

https://en.wikipedia.org/wiki/%22Shotgun%22_Tom_Kelly

http://www.radiofacts.com/k-earth-101s-shotgun-tom-kelly-to-receive-star-on-the-hollywood-walk-of-fame/