| Name | NBC Team | Last MLB Team | Last MLB Year |
|---|---|---|---|
| A.J. Griffin | Santa Barbara Foresters | Texas Rangers | 2017 |
| A.J. Hinch | Team USA | Philadelphia Phillies | 2004 |
| Aaron Bates | Santa Barbara Foresters | Boston Red Sox | 2009 |
| Aaron Brooks | Palm Springs Power | Baltimore Orioles | 2019 |
| Aaron Crow | Hays Larks | Kansas City Royals | 2014 |
| Aaron Harang | Kelowna Falcons | Philadelphia Phillies | 2015 |
| Aaron Heilman | Team USA | Arizona Diamondbacks | 2011 |
| Aaron Judge | Anchorage Glacier Pilots | New York Yankees | |
| Aaron Myette | Coquitlam Athletics | Cincinnati Reds | 2004 |
| Abe Alvarez | Matsu Miners | Boston Red Sox | 2006 |
| Adam Bernero | Santa Barbara Foresters | Kansas City Royals | 2006 |
| Adam Kennedy | Anchorage Bucs | Los Angeles Dodgers | 2012 |
| Adam LaRoche | Wichita, KS | Chicago White Sox | 2015 |
| Adam Melhuse | Clarinda A’s | Colorado Rockies | 2008 |
| Adam Moore | Kenai Peninsula Oilers | Tampa Bay Rays | 2018 |
| Al Cicotte | Hawaii Marines | Houston Astros | 1962 |
| Al Closter | North Platte, NE | Atlanta Braves | 1973 |
| Al Downing | Trenton, NJ | Los Angeles Dodgers | 1977 |
| Al Hrabosky | Wichita, KS | Atlanta Braves | 1982 |
| Al Lary | Tuscaloosa, AL | Chicago Cubs | 1962 |
| Al Newman | Liberal Bee Jays | Texas Rangers | 1992 |
| Al Nipper | St. Louis, MO | Cleveland Indians | 1990 |
| Al Osuna | Anchorage Bucs | San Diego Padres | 1996 |
| Al Schmelz | Fairbanks Goldpanners | New York Mets | 1967 |
| Alan Bannister | Boulder Collegians | Texas Rangers | 1985 |
| Alan Zinter | Matsu Miners | Arizona Diamondbacks | 2004 |
| Albert Pujols | Hays Larks | St. Louis Cardinals | |
| Alex Fernandez | Miami, FL | Florida Marlins | 2000 |
| Alex Gordon | Beatrice Bruins | Kansas City Royals | 2020 |
| Alex Kellner | Phoenix, AZ | St. Louis Cardinals | 1959 |
| Allan Ramirez | Kenai Peninsula Oilers | Baltimore Orioles | 1983 |
| Alvin Davis | Fairbanks Goldpanners | California Angels | 1992 |
| Andre Robertson | Liberal Bee Jays | New York Yankees | 1985 |
| Andrew Cashner | Clarinda A’s | Boston Red Sox | 2019 |
| Andy Benes | Clarinda A’s | St. Louis Cardinals | 2002 |
| Andy Messersmith | Fairbanks Goldpanners | Los Angeles Dodgers | 1979 |
| Andy Stankiewicz | North Pole Nicks | Arizona Diamondbacks | 1998 |
| Anthony Telford | Anchorage Bucs | Texas Rangers | 2002 |
| Art Ditmar | Camp Atterbury, IN | Kansas City Athletics | 1962 |
| Atlee Hammaker | Kenai Peninsula Oilers | Chicago White Sox | 1995 |