Julian Javier had the most at bats without striking out against Nolan Ryan with 16.
Claudell Washington ... Ryan struckout Washington 39 times in 102 plate appearances.
Will Clark hit the most HRs off of Ryan with 6 and Mike Schmidt hit 5.
Denton True Young, or as most fans know him Cy, (short for cyclone, name originated from his spinning windup) Young threw 12 1-hitters in his career which is the mlb record. Actually that is incorrect. Two players are tied for most one-hitters in a career: Bob Feller and Nolan Ryan, each with 12. In addition Ryan also threw 7 no-hitters and 18 two-hitters.
Ryan threw 279 pitches in a game in 1973.
The most strikeouts in the MLB is currently held by Nolan Ryan. The next most is Randy Johnson. 
Nolan Ryan, with 7 in his career.
Nolan Ryan with 5714
it is Nolan Ryan