Exhibit 31.2

                                 Certifications

I, John C. Ferrara, certify that:

    1.       I have reviewed this report on Form 10-Q of GAMCO Investors, Inc.;

    2.       Based on my knowledge, this report does not contain any untrue
             statement of a material fact or omit to state a material fact
             necessary to make the statements made, in light of the
             circumstances under which such statements were made, not
             misleading with respect to the period covered by this report;

    3.       Based on my knowledge, the financial statements, and other
             financial information included in this report, fairly present in
             all material respects the financial condition, results of
             operations and cash flows of the registrant as of, and for, the
             periods presented in this report;

    4.       The registrant's other certifying officer and I are responsible for
             establishing and maintaining disclosure controls and procedures
             (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
             internal control over financial reporting (as defined in Exchange
             Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

             a)   designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information
                  relating to the registrant, including its consolidated
                  subsidiaries, is made known to us by others within those
                  entities, particularly during the period in which this
                  report is being prepared;

             b)   designed such internal control over financial reporting, or
                  caused such internal control over financial reporting to be
                  designed under our supervision, to provide reasonable
                  assurance regarding the reliability of financial reporting
                  and the preparation of financial statements for external
                  purposes in accordance with generally accepted accounting
                  principles;

             c)   evaluated the effectiveness of the registrant's disclosure
                  controls and procedures and presented in this report our
                  conclusions about the effectiveness of the disclosure
                  controls and procedures, as of the end of the period covered
                  by this report based on such evaluation; and

             d)   disclosed in this report any change in the registrant's
                  internal control over financial reporting that occurred
                  during the registrant's most recent fiscal quarter (the
                  registrant's fourth fiscal quarter in the case of an annual
                  report) that has materially affected, or is reasonably
                  likely to materially affect, the registrant's internal
                  control over financial reporting; and

    5.       The registrant's other certifying officer and I have disclosed,
             based on our most recent evaluation of internal control over
             financial reporting, to the registrant's auditors and the audit
             committee of registrant's board of directors (or persons
             performing the equivalent functions):

             a)   all significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect
                  the registrant's ability to record, process, summarize and
                  report financial data; and

             b)   any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal control over financial reporting.



                                        By:      /s/    John C. Ferrara
                                                 -----------------------
                                                 John C. Ferrara
                                                 Interim Chief Financial Officer

                                                 Date: May 10, 2007