Exhibit 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in each of the twelve Registration Statements of Mattel, Inc. on Form S-8 (No. 33-14717, No. 33-51454, No. 33-34920, No. 33-57082, No. 33-62185, No. 333-01061, No. 333-03385, No. 333- 47459, No. 333-47641, No. 333-67493, No. 333-75145, and No. 333-79099), in the Prospectus constituting part of the Registration Statement on Form S-3 (No. 333- 68017) and in the Prospectus constituting part of the Registration Statement on Form S-4 (No. 333-71587) of our report dated March 26, 1999 relating to the financial statements and financial statement schedule of The Learning Company, Inc., which appears in The Learning Company, Inc.'s 1998 Annual Report on Form 10-K. /s/ PricewaterhouseCoopers LLP Boston, Massachusetts May 26, 1999