Robert Horry with 244 games.
Shaq has played in 203 playoff games.
Derek Jeter with 127
Wayne Primeau who has played 90 games in the playoffs but has won no Stanley Cups. Miikka Kiprusoff and Jarome Iginla have both played 47 playoff games for the Flames.
The Browns have been in 36 playoff games.
Kareem Abdul-Jabbar with 237 playoff games
Wide Receiver Jerry Rice is the current record holder for having been in the most playoff games. Rice has been in 29 playoff games in his career.4 Super Bowls6 NFC Championship Games1 AFC Championship Game11 NFC Divisional Games2 AFC Divisional Games3 NFC Wildcard Games1 AFC Wildcard Game
As of the 2008 season, that would be Hall of Famer Jerry Rice who played in 29 playoff games during his career.