Pat Kiley, 71, of Minneapolis, promoted allegedly fraudulent currency investments through his talk-radio program, "Follow the Money," which was broadcast on a Christian radio network and about 200 AM-FM stations nationwide. Kiley produced the show from a home Cook owned in Burnsville. They worked together at other investment firms since the late 1990s.

Gerald Durand, 58, of Faribault, was a manager at a gold and silver trading firm that hired Cook as a salesman in 1997. Durand promoted the suspect investments on Christian radio. He and Cook were part owners of the investment group linked to the alleged fraud. They split up in mid-2008.

Chris Pettengill, 53, of Plymouth, hired Cook in 2001 at his advisory firm in Maple Grove. He fired Cook in 2003, but later worked with him again, eventually becoming part owner of the investment group linked to the alleged fraud. Pettengill split with Cook in mid-2008.

Jason (Bo) Beckman, 40, of Plymouth, an equities specialist, had been part owner of the investment group linked to the alleged fraud. He and Cook worked in the Van Dusen mansion; they parted company in July.

Tom Richardson, 52, of Burnsville, was chief operating officer of one of Cook's investment entities when it shut down last July in the wake of a government fraud investigation. He left the firm in July.

DAN BROWNING