Players who played for the Athletics and St. Louis Cardinals
126 players
126 players have played for both the Athletics and the St. Louis Cardinals. Mark McGwire spent the most seasons with the two: 11 with the Athletics and 4 with the St. Louis Cardinals. On a roster now: Sonny Gray, Chris Roycroft, Drew Rom, and Scott Blewett. Every season since 1876 is on file.
| Player | Pos | ATH | STL |
|---|---|---|---|
| Mark McGwire | 1B | 1986–1996 · 11 seasons | 1998–2001 · 4 seasons |
| Dennis Eckersley | RP | 1987–1995 · 9 seasons | 1996–1997 · 2 seasons |
| Dal Maxvill | — | 1975 · 1 season | 1962–1971 · 10 seasons |
| Alex Kellner | P | 1948–1957 · 10 seasons | 1959 · 1 season |
| Mark Ellis | 2B | 2002–2011 · 9 seasons | 2014 · 1 season |
| Mike Gallego | 2B | 1985–1995 · 8 seasons | 1996–1997 · 2 seasons |
| Gene Tenace | 1B | 1969–1976 · 8 seasons | 1981–1982 · 2 seasons |
| Matt Holliday | OF | 2009 · 1 season | 2009–2016 · 8 seasons |
| Jason Isringhausen | RP | 2000–2001 · 2 seasons | 2002–2008 · 7 seasons |
| Mark Mulder | SP | 2000–2004 · 5 seasons | 2005–2008 · 4 seasons |
| Rick Honeycutt | RP | 1988–1995 · 7 seasons | 1996–1997 · 2 seasons |
| Diego Segui | P | 1962–1971 · 8 seasons | 1973 · 1 season |
| Bobby Shantz | P | 1949–1956 · 8 seasons | 1963 · 1 season |
| Murry Dickson | P | 1959 · 1 season | 1939–1957 · 8 seasons |
| George Hendrick | LF | 1971–1972 · 2 seasons | 1979–1984 · 6 seasons |
| Lew Krausse | P | 1961–1969 · 7 seasons | 1973 · 1 season |
| Dick Siebert | — | 1939–1945 · 7 seasons | 1937 · 1 season |
| Monte Cross | — | 1902–1907 · 6 seasons | 1896–1897 · 2 seasons |
| Sonny Gray | SP | 2013–2017 · 5 seasons | 2024–2025 · 2 seasons |
| Mike Mohler | RP | 1993–1998 · 6 seasons | 1999 · 1 season |
| Tim Conroy | SP | 1978–1985 · 5 seasons | 1986–1987 · 2 seasons |
| Matt Keough | RP | 1977–1982 · 6 seasons | 1985 · 1 season |
| Pete Kozma | SS | 2021 · 1 season | 2011–2015 · 5 seasons |
| Kiko Calero | RP | 2005–2008 · 4 seasons | 2003–2004 · 2 seasons |
| Scott Spiezio | 3B | 1996–1999 · 4 seasons | 2006–2007 · 2 seasons |
| Craig Paquette | 1B | 1993–1995 · 3 seasons | 1999–2001 · 3 seasons |
| Omar Olivares | RP | 2000 · 1 season | 1990–1994 · 5 seasons |
| Scott Hemond | C | 1989–1994 · 5 seasons | 1995 · 1 season |
| Joaquin Andujar | RP | 1986–1987 · 2 seasons | 1982–1985 · 4 seasons |
| Lave Cross | — | 1901–1905 · 5 seasons | 1898 · 1 season |
| Aaron Brooks | SP | 2015–2024 · 4 seasons | 2022 · 1 season |
| Brandon Moss | RF | 2012–2014 · 3 seasons | 2015–2016 · 2 seasons |
| Dan Johnson | 1B | 2005–2008 · 4 seasons | 2015 · 1 season |
| Dan Haren | SP | 2005–2007 · 3 seasons | 2003–2004 · 2 seasons |
| T.J. Mathews | RP | 1998–2000 · 3 seasons | 1995–1996 · 2 seasons |
| Darold Knowles | RP | 1972–1974 · 3 seasons | 1979–1980 · 2 seasons |
| Mike Torrez | SP | 1976 · 1 season | 1967–1970 · 4 seasons |
| Cloyd Boyer | P | 1955 · 1 season | 1949–1952 · 4 seasons |
| Vern Benson | — | 1943–1946 · 2 seasons | 1951–1953 · 3 seasons |
| Chris Roycroft | RP | 2026 · 1 season | 2024–2026 · 3 seasons |
| Tyson Ross | SP | 2010–2012 · 3 seasons | 2018 · 1 season |
| Marc Rzepczynski | RP | 2016 · 1 season | 2011–2013 · 3 seasons |
| Bryan Anderson | C | 2014–2015 · 2 seasons | 2010–2012 · 2 seasons |
| Adam Kennedy | 3B | 2009 · 1 season | 1999–2008 · 3 seasons |
| Russ Springer | RP | 2009 · 1 season | 2003–2008 · 3 seasons |
| Ricardo Rincon | RP | 2003–2005 · 3 seasons | 2006 · 1 season |
| Ron Gant | LF | 2003 · 1 season | 1996–1998 · 3 seasons |
| Felix Jose | RF | 1988–1989 · 2 seasons | 1991–1992 · 2 seasons |
| Jamie Quirk | C | 1990–1992 · 3 seasons | 1983 · 1 season |
| Denny Walling | 3B | 1975–1976 · 2 seasons | 1989–1990 · 2 seasons |
| Dave Von Ohlen | RP | 1986–1987 · 2 seasons | 1983–1984 · 2 seasons |
| Mario Guerrero | SS | 1978–1980 · 3 seasons | 1975 · 1 season |
| Danny Cater | — | 1967–1969 · 3 seasons | 1975 · 1 season |
| George Brunet | P | 1956–1959 · 3 seasons | 1971 · 1 season |
| Moe Drabowsky | P | 1963–1965 · 3 seasons | 1971 · 1 season |
| Bob Duliba | P | 1967 · 1 season | 1959–1962 · 3 seasons |
| Gordon Jones | P | 1962 · 1 season | 1954–1956 · 3 seasons |
| Morrie Martin | P | 1951–1953 · 3 seasons | 1957 · 1 season |
| Don Bollweg | — | 1954–1955 · 2 seasons | 1950–1951 · 2 seasons |
| Don Richmond | — | 1941–1947 · 3 seasons | 1951 · 1 season |
| Nels Potter | P | 1938–1940 · 3 seasons | 1936 · 1 season |
| Paddy Livingston | — | 1909–1911 · 3 seasons | 1917 · 1 season |
| Luke Gregerson | RP | 2014 · 1 season | 2018–2019 · 2 seasons |
| John Axford | RP | 2016–2017 · 2 seasons | 2013 · 1 season |
| Edward Mujica | RP | 2015 · 1 season | 2012–2013 · 2 seasons |
| Pat Neshek | RP | 2012–2013 · 2 seasons | 2014 · 1 season |
| Brian Fuentes | RP | 2011–2012 · 2 seasons | 2012 · 1 season |
| Octavio Dotel | RP | 2004–2005 · 2 seasons | 2011 · 1 season |
| Clayton Mortensen | SP | 2009–2010 · 2 seasons | 2009 · 1 season |
| Larry Sutton | 1B | 2002 · 1 season | 2000–2001 · 2 seasons |
| Todd Stottlemyre | SP | 1995 · 1 season | 1996–1997 · 2 seasons |
| Brian Harper | C | 1987–1995 · 2 seasons | 1985 · 1 season |
| Ozzie Canseco | LF | 1990 · 1 season | 1992–1993 · 2 seasons |
| Doug Bair | RP | 1977–1986 · 2 seasons | 1982 · 1 season |
| Jimmy Sexton | SS | 1981–1982 · 2 seasons | 1983 · 1 season |
| Milt Ramirez | — | 1979 · 1 season | 1970–1971 · 2 seasons |
| Joe Grzenda | P | 1964–1966 · 2 seasons | 1972 · 1 season |
| Joe Nossek | — | 1966–1967 · 2 seasons | 1970 · 1 season |
| Roger Maris | — | 1959 · 1 season | 1967–1968 · 2 seasons |
| Gino Cimoli | — | 1962–1963 · 2 seasons | 1959 · 1 season |
| Ray Jablonski | — | 1960 · 1 season | 1953–1954 · 2 seasons |
| Jack Urban | P | 1957–1958 · 2 seasons | 1959 · 1 season |
| Jack Crimian | P | 1956 · 1 season | 1951–1952 · 2 seasons |
| Herman Franks | — | 1947–1948 · 2 seasons | 1939 · 1 season |
| Ed Heusser | P | 1940 · 1 season | 1935–1936 · 2 seasons |
| Jack Rothrock | — | 1937 · 1 season | 1934–1935 · 2 seasons |
| George Puccinelli | — | 1936 · 1 season | 1930–1932 · 2 seasons |
| Vic Keen | P | 1918 · 1 season | 1926–1927 · 2 seasons |
| Mike Kircher | P | 1919 · 1 season | 1920–1921 · 2 seasons |
| Charlie Boardman | P | 1913–1914 · 2 seasons | 1915 · 1 season |
| Morgan Murphy | — | 1901 · 1 season | 1896–1897 · 2 seasons |
| Drew Rom | RP | 2026 · 1 season | 2023 · 1 season |
| Scott Blewett | RP | 2026 · 1 season | 2026 · 1 season |
| Edwin Jackson | SP | 2018 · 1 season | 2011 · 1 season |
| George Kottaras | C | 2012 · 1 season | 2014 · 1 season |
| Nick Punto | 2B | 2014 · 1 season | 2011 · 1 season |
| Arthur Rhodes | RP | 2004 · 1 season | 2011 · 1 season |
| Brett Tomko | SP | 2009 · 1 season | 2003 · 1 season |
| Mark Johnson | C | 2003 · 1 season | 2008 · 1 season |
| Randy Keisler | RP | 2006 · 1 season | 2007 · 1 season |
| Mike Rose | C | 2004 · 1 season | 2006 · 1 season |
| Alberto Castillo | C | 2005 · 1 season | 1999 · 1 season |
| Britt Reames | P | 2005 · 1 season | 2000 · 1 season |
| Kevin Jarvis | RP | 1999 · 1 season | 2005 · 1 season |
| Cody McKay | C | 2002 · 1 season | 2004 · 1 season |
| Allen Battle | CF | 1996 · 1 season | 1995 · 1 season |
| Jeff Parrett | RP | 1992 · 1 season | 1995 · 1 season |
| Fred Manrique | SS | 1991 · 1 season | 1986 · 1 season |
| Dave Collins | 1B | 1985 · 1 season | 1990 · 1 season |
| Bill Dawley | RP | 1989 · 1 season | 1987 · 1 season |
| Ray Burris | RP | 1984 · 1 season | 1986 · 1 season |
| Steve Mura | RP | 1985 · 1 season | 1982 · 1 season |
| Lary Sorensen | RP | 1984 · 1 season | 1981 · 1 season |
| Rick Bosetti | CF | 1982 · 1 season | 1977 · 1 season |
| Taylor Duncan | — | 1978 · 1 season | 1977 · 1 season |
| Dick Allen | — | 1977 · 1 season | 1970 · 1 season |
| Charlie Chant | — | 1975 · 1 season | 1976 · 1 season |
| Vic Davalillo | 1B | 1974 · 1 season | 1970 · 1 season |
| Don Shaw | P | 1972 · 1 season | 1971 · 1 season |
| John Mackinson | P | 1953 · 1 season | 1955 · 1 season |
| Russ Derry | — | 1946 · 1 season | 1949 · 1 season |
| Roy Parmelee | P | 1939 · 1 season | 1936 · 1 season |
| Charlie Grimm | — | 1916 · 1 season | 1918 · 1 season |
| Jim Brown | — | 1916 · 1 season | 1915 · 1 season |
| Mike Murphy | — | 1916 · 1 season | 1912 · 1 season |
| Pete Noonan | — | 1904 · 1 season | 1907 · 1 season |
Regular season, under every name each club has played as. A season split by a trade counts for both clubs where the game logs reach it (NBA from 1993-94, NFL 1994, NHL 1996, MLB 2001). Longest stay with the two first.