who was a strong charactie and why

There are few strong characters in this story..... they're either weak willed, mentally weak, or morally weak. Eppie is probably as close as it gets....

Eppie, or Hephzibah

A child with golden-curled hair and the biological daughter of Godfrey Cass and Molly Farren, she toddles into Silas Marner's cottage when her mother is dying. Infinitely curious and good-natured, Eppie is Marner's redeemer. She grows up to be a lovely, auburn-haired girl, never leaving her new father--Marner himself--and eventually marrying Aaron Winthrop.