Currently, it appears that Doug Preis is the voice artist for the Vlasic Pickles commercials (if this is what you're asking).
http://www.dougpreis.com/
A Vlasic voice-over is briefly heard (along with other commercial voice-overs you may not have known he did) with the 'Commercial' button from the above link.
The 'Bio' link also lists some of the ads.
He may have voiced 'Jovny the Stork' when Vlasic introduced it in a TV commercial in 1974 (if the birthdate I found for him is correct -- 1930), but I can't find any confirmation. This news article suggests that Groucho Marx was indeed the voice, with other characters in the commercial imitating his voice --
http://news.Google.com/newspapers?nid=1817&dat=19991018&id=w88yAAAAIBAJ&sjid=TaYEAAAAIBAJ&pg=3803,3685030
While this news article says the character 'talks and behaves like Groucho Marx' --
http://www.nytimes.com/2007/05/30/business/media/29adnewsletter1.html?_r=1&pagewanted=print
You might enjoy these other commercials and links --
http://www.vlasic.com/ -- click 'Meet the Stork'
http://www.YouTube.com/watch?v=YXiBgiFzKio
http://www.youtube.com/watch?v=sGkTZFQKAT4
Nikolai Vlasik was born in 1896.
Nikolai Vlasik died in 1967.
Lisa Horner is the voice of the "start the car" IKEA commercial.
Peter Jessop is the voice in the commercial.
Lisa Horner is the voice of the "start the car" IKEA commercial.
Peter Coyote is the voice in the Nation Magazine commercial
The voice of the butterfly in the Lunesta commercial is provided by the actress and voice-over artist Amy Rutberg.
Nigel Sloan did the voice over for the "Quadruplets" commercial. He lives in the Toronto area.
Chris Sullivan is the voice of the camel in the Geico commercial Happier than a Camel on Wednesday. Some people find the voice annoying, but most find this commercial their best one yet.
Will Lyman is the voice of the BMW commercial.
Will Lyman
The piggy's voice in the Geico commercial is provided by actor Maxwell the Geico Pig.