A former business manager of Stan Lee has been charged in California with five counts of elder abuse involving the late Marvel Comics mastermind.

A request for a restraining order filed last year by Lee's daughter alleged Keya Morgan was manipulating the mentally declining Lee, preventing him from seeing family and friends, and trying to take control of his money and business affairs.

The felony charges filed Friday by Los Angeles County prosecutors against the 43-year-old Morgan include theft, embezzlement, forgery or fraud against an elder adult, and false imprisonment of an elder adult. A misdemeanour count also alleges elder abuse.

The charges date to June, when Morgan was working closely with Lee, who died in November.