Exhibit 32.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Each of the undersigned hereby certifies in his capacity as an officer of American Physicians Capital, Inc. (the "Company"), for purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Quarterly Report of the Company on Form 10-Q (the "Report") for the period ended March 31, 2006, as filed with the Securities and Exchange Commission on the date hereof fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and (2) The information contained in such Report fairly presents, in all material respects, the financial condition and result of operations of the Company. Date: May 10, 2006 /s/ R. Kevin Clinton - -------------------------------------------- R. Kevin Clinton President and Chief Executive Officer /s/ Frank H. Freund - -------------------------------------------- Frank H. Freund Senior Executive Vice President, Treasurer and Chief Financial Officer