POWER OF ATTORNEY



   The undersigned hereby constitutes and appoints Michael D. Fricklas
the undersigned's true and lawful attorney-in-fact to:

*	Execute and file for and on behalf of the undersigned, any
reports on Forms 3, 4  and 5 (including any amendments thereto)
with respect to ownership of securities of Viacom Inc. (the "Company")
that the undersigned may be required to file with the U.S. Securities
and Exchange Commission in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules thereunder;

*	The undersigned acknowledges that the foregoing
attorney-in-fact, in serving in such capacity at the request of
the undersigned, is not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

*    	This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file
Forms 3, 4 and 5 with respect to the undersigned's holdings
and transactions in securities issued by the Company, unless
earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power
of Attorney to be executed as of this 28th day of April, 2005.



Signature:      /s/ Michael J. Dolan
	      -----------------------------
	      Print Name:  Michael J. Dolan