Brad Rutter, a $3.2-million winner from Los Angeles, California; Watson, a deep question answering system from IBM; Ken Jennings, a 74-game champion from Seattle, Washington. The IBM Challenge, continuation of game 1.
| Name | Type | Role | |
|---|---|---|---|
| Ken Jennings | Guest Star | ||
| Watson | Guest Star | ||
| Brad Rutter | Guest Star |