The Norsemen had high expectations coming into 2005. On the heels of a year in which they caught everyone by surprise with their success, the team found itself ranked in the pre-season national polls. The team struggled early in the season but caught fire in the second half, finishing 26-30 overall. While no one was satisfied, the record was again an improvement over the prior year; and the fact that all involved were a bit disappointed shows how much expectations have changed in recent years. Four players were named All-Region, including one who was named Region XVI Player of the Year and a third-team All-American.
| Name | Position | Year | High School |
| Bryan Shaughnessy | IF/OF | S | CBC |
| Levi Cowin | C/P | S | Ellington |
| Mike Russell | OF | S | Ellington |
| Matt Rose | P | S | Fulton |
| Ben Scanio | P | S | Hazelwood West |
| Tony Marsala | P/IF | S | Rosary |
| Jeff Kolve | IF | S | St. Charles |
| Kyle Palmer | OF | S | St. Genevieve |
| Chris Steimel | IF | S | Hazelwood Central |
| Mike Heidger | P | F | CBC |
| Nathan Picarella | OF | F | Crystal City |
| Phil Widel | OF | F | Howell |
| Donnie Baranovic | C | F | Hazelwood East |
| Mike Drexl | C | F | Hazelwood West |
| Dan Scanio | P/IF | F | Hazelwood West |
| David Lawrence | OF | F | Hillsboro |
| Shaun Monica | P | F | McCluer North |
| Shawn Rogers | P | F | Ritenour |
| David Atkins | IF | F | Seckman |
| Ryan Bledsoe | IF | F | Union |
| Matt Bolzenius | P | F | Union |
| Nick Landzettel | C | F | Union |
| Mike Notorangelo | OF | RS | McCluer |
| Eric Salamone | P | RS | Borgia |
| Andy Miller | P | RS | St. Genevieve |
| Pat Kerr | IF | RS | Kennedy |
| Matt Mayer | IF | RS | Seckman |
