| SP | Valenzuela, F.Valenzuela, Fernando >> | 24 | 1984 | L | 85 | 20 | 18 | 11 | 3 | 3.39 | .286 | 1.19 | 8.0 | 2.8 | 5.9 | 130.0 | 115 | 52 | 49 | 10 | 40 | 85 | 5 | 0 | 0 | 1 | 13 | 1 | 4 | 3.64 |
| SP | Pena, A.Pena, Alejandro † >> | 25 | 1984 | R | 83 | 29 | 29 | 14 | 11 | 3.77 | .303 | 1.30 | 8.6 | 3.1 | 5.2 | 212.2 | 203 | 91 | 89 | 21 | 74 | 123 | 5 | 0 | 0 | 2 | 19 | 0 | 2 | 4.17 |
| SP | Niekro, J.Niekro, Joe # >> | 40 | 1984 | R | 66 | 28 | 28 | 12 | 9 | 4.08 | .306 | 1.33 | 9.2 | 2.8 | 4.9 | 172.0 | 175 | 80 | 78 | 18 | 53 | 94 | 0 | 0 | 0 | 0 | 14 | 0 | 2 | 4.19 |
| SP | Gubicza, M.Gubicza, Mark >> | 22 | 1984 | R | 55 | 27 | 27 | 12 | 11 | 3.43 | .308 | 1.33 | 8.5 | 3.5 | 4.9 | 173.1 | 163 | 71 | 66 | 15 | 68 | 94 | 0 | 0 | 0 | 0 | 18 | 0 | 3 | 4.22 |
| RP | Searage, R.Searage, Ray >> | 29 | 1984 | L | 100 | 83 | 0 | 4 | 4 | 2.06 | .258 | 1.04 | 5.7 | 3.7 | 5.3 | 118.0 | 75 | 29 | 27 | 6 | 48 | 69 | 0 | 10 | 3 | 0 | 0 | 0 | 0 | 3.71 |
| RP | Dravecky, D.Dravecky, Dave † >> | 28 | 1984 | L | 83 | 64 | 0 | 8 | 8 | 3.34 | .289 | 1.20 | 8.5 | 2.3 | 4.2 | 105.0 | 99 | 42 | 39 | 9 | 27 | 49 | 0 | 16 | 3 | 0 | 0 | 2 | 1 | 4.01 |
| RP | Jackson, R.Jackson, Roy Lee † >> | 30 | 1984 | R | 73 | 46 | 0 | 6 | 2 | 2.60 | .297 | 1.25 | 7.7 | 3.6 | 4.6 | 62.1 | 53 | 19 | 18 | 3 | 25 | 32 | 0 | 11 | 1 | 0 | 0 | 1 | 0 | 3.85 |
| RP | Stanton, M.Stanton, Mike >> | 32 | 1984 | R | 69 | 15 | 0 | 0 | 0 | 2.77 | .316 | 1.38 | 9.7 | 2.8 | 5.5 | 13.0 | 14 | 4 | 4 | 0 | 4 | 8 | 0 | 4 | 0 | 0 | 0 | 0 | 2 | 2.69 |
| RP | Armstrong, M.Armstrong, Mike >> | 30 | 1984 | R | 55 | 11 | 0 | 1 | 0 | 7.00 | .460 | 2.56 | 19.0 | 4.0 | 5.0 | 9.0 | 19 | 9 | 7 | 1 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.67 |
| RP | Stewart, S.Stewart, Sammy >> | 30 | 1984 | R | 48 | 3 | 0 | 0 | 0 | 3.60 | .250 | 1.00 | 5.4 | 3.6 | 9.0 | 5.0 | 3 | 2 | 2 | 1 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4.80 |