Buzz Feed News reported that one incident allegedly involved Susan Mc Cain Olson, a high school student working as an extra in 1985 on the star's first film, Lucas, when she was 17 and he was 21.
She claims he followed her into a trailer, tried to kiss her and then groped her.
CBS, Piven's current employer, is said to be looking into the matter.
Related: Kevin Spacey Accused Of Flashing & Paying Off A Teenage Barkeep The "I unequivocally deny the appalling allegations being peddled about me. It takes a great deal of courage for victims to come forward with their histories, and my hope is that the allegations about me that didn't happen, do not detract from stories that should be heard.""Today, via the press reports, is the first we are hearing about Ariane Bellamar's allegations concerning Jeremy Piven.
Actress Cassidy Freeman said on her Instagram page that Piven engaged in "predatory behaviour" against her when she was "far too young".
Advertising executive Tiffany Bacon Scourby, 39, claimed that Piven forced himself on her in a room at the Trump International Hotel & Tower in New York, holding her down for 15 minutes and ejaculating on her.
Last autumn, The New York Times published allegations of sexual harassment and assault against Hollywood mogul Harvey Weinstein, who has denied any non-consensual sex.
I’m comfortable with what I got.” “I’m in a really good place right now, living life to the fullest and trying to get the most out of every single day,” she said.
“There’s a lot I have to offer in addition to skiing.
” Vonn also posed for a selfie gif with Piven and a friend, shared to her own Twitter profile.
Overdressed to support my buddies, proud of @lindseyvonn doing her thing.