Paul Volcker is a former chairman of the U.S. Federal Reserve. His name was attached by President Obama to the new measures curtailing banks' risk-taking and size announced on Jan. 21. 

Timothy Geithner is currently the U.S. Treasury secretary, and was previously president of the New York Federal Reserve. Robert Steel was chief executive of Wachovia for part of 2008, until the bank's acquisition by Wells Fargo. He now sits on Wells' board of directors. Prior to running Wachovia, he was an official at the Treasury. 

Christopher Dodd is a Democrat U.S. senator from Connecticut and chairs the Senate Banking Committee. He has said he will not stand for re-election in November's elections. Harry Reid is the Democrat majority leader in the Senate. 

David Axelrod is a political advisor to President Obama.