Japan's Daisuke Matsuzaka, named the tournament's most valuable player after Monday night's title game, was also an all-tournament selection as were his teammates, pitcher Hisashi Iwakuma and outfielder Norichika Aoki.
Japan won the WBC championship with a 10-inning, 5-3 victory over South Korea.
Matsuzaka was 3-0 with a 2.45 earned run average in the tournament. Iwakuma was 1-1 with a 1.35 ERA while Aoki hit .324 with seven runs batted in and four runs scored.
Runner-up South Korea placed four players on the 13-member all-tournament squad. In addition to Kim, a first baseman, third baseman Lee Bum-ho, designated hitter Kim Hyun-soo and pitcher Bong Jung-keun were also all-tournament.
Cepeda, an outfielder, joined and Kim Tae-kyun as the only unanimous choices. Cepeda hit .500 with three home runs and 10 RBI and Kim led the tournament with 11 RBI. He also hit .345.
Shortstop Jimmy Rollins, who hit .417 in the tournament, was the only U.S. player to make the team. Also selected were Puerto Rico catcher Ivan Rodriguez, Venezuela second baseman Jose Lopez and Cuba outfielder Yoennis Cespedes.
The all-tournament team was decided in a vote of media members covering the WBC.