Hayden Panettiere is reportedly trying to get her ex-boyfriend kicked off of "Heroes." The 19-year-old actress ended her relationship with co-star Milo Ventimiglia, 31, last month and is now said to have demanded bosses on the hit show axe his character, Peter Petrelli.

A mutual friend of the former couple told OK! magazine: "She refuses to be on the set at the same time as him. She is making it difficult for everyone involved."

Hayden Panettiere and Milo Ventimiglia have split up.

The 19-year-old "Heroes" actress ended her relationship with her 31-year-old co-star - who she confirmed she was dating last April after months of speculation - because she had reportedly been unhappy for months.

Hayden Panettiere, 19, was questioned by police after admitting to sneaking into a nightclub through a side door. The "Heroes" actress was spotted at 21-and-over New York venue NV Lounge by door men and was asked to produce identification to prove she was old enough to be in the club.

When club managers refused to return her driver's license due to the venue's policy, a furious Hayden called police to intervene.

Hayden Panettiere took patients from Los Angeles' Children's Hospital on a shopping spree over the weekend.

The "Heroes" star - who is the face of fashion company Candie's - accompanied five girls, who are currently being treated at the medical facility for problems including aneurisms, strokes, paralysis of the nerves and spine and sickle cell anemia, on a shopping trip to San Gabriel department store Kohl's on Saturday.