| Home | Teams and Players | Homerun Kings | Top Salaries | Most Runs Batted In | Hall of Fame |
| Name | Sean O'Sullivan |
| Given Name | Sean Daniel |
| Birth Date | 1987-9-1 |
| Birth City | San Diego, CA |
| Height | 6'1" |
| Weight | 245 lbs. |
| Batting Hand | Right |
| Pitching Hand | Right |
| Alive | Yes |
| Age | 38 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | Los Angeles Angels of Anaheim | 1 | 3 | 0 | 0 | 0.333333 | 4 | 2 | 12 | 29 | 0 |
| 2010 | Kansas City Royals | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 5 | 6 | 0 |
| 2010 | Kansas City Royals | 0 | 1 | 0 | 0 | 0 | 3 | 6 | 14 | 37 | 0 |
| 2010 | Kansas City Royals | 0 | 0 | 0 | 0 | NAN | 1 | 0 | 5 | 6 | 0 |
| 2010 | Kansas City Royals | 0 | 0 | 0 | 0 | NAN | 3 | 6 | 14 | 37 | 0 |
| 2010 | Los Angeles Angels of Anaheim | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 5 | 6 | 0 |
| 2010 | Los Angeles Angels of Anaheim | 0 | 1 | 0 | 0 | 0 | 3 | 6 | 14 | 37 | 0 |
| 2010 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 1 | 0 | 5 | 6 | 0 |
| 2010 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 3 | 6 | 14 | 37 | 0 |
| 2011 | Kansas City Royals | 0 | 0 | 0 | 0 | NAN | 2 | 6 | 12 | 19 | 0 |
| 2013 | San Diego Padres | 1 | 6 | 0 | 0 | 0.166667 | 0 | 2 | 7 | 12 | 0 |
| 2014 | Philadelphia Phillies | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 3 | 7 | 0 |
| 2015 | Philadelphia Phillies | 2 | 20 | 0 | 0 | 0.1 | 1 | 6 | 13 | 35 | 0 |
| 2016 | Boston Red Sox | 0 | 0 | 0 | 0 | NAN | 2 | 0 | 5 | 13 | 0 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 2009 | Pitcher | 0 | 0 | 3 |
| 2010 | Pitcher | 0 | 0 | 1 |
| 2010 | Pitcher | 1 | 1 | 6 |
| 2011 | Pitcher | 1 | 0 | 7 |
| 2013 | Pitcher | 0 | 0 | 4 |
| 2014 | Pitcher | 0 | 1 | 2 |
| 2015 | Pitcher | 0 | 0 | 6 |
| 2016 | Pitcher | 1 | 0 | 2 |