# Luis Castillo (pitcher, born 1995)

Luis Felipe Castillo (born March 10, 1995) is a Dominican professional baseball pitcher in the Seattle Mariners organization. He has previously played in Major League Baseball (MLB) for the Detroit Tigers, and in Nippon Professional Baseball (NPB) for the Chiba Lotte Marines and Orix Buffaloes. He was signed by the Arizona Diamondbacks as an international free agent in 2012. Castillo is listed at 6 feet 3 inches (1.91 m) and 212 pounds (96 kg) and bats and throws right handed.

## Career
### Arizona Diamondbacks

On February 16, 2012, Castillo signed with the Arizona Diamondbacks as an international free agent. He made his professional debut with the Dominican Summer League Diamondbacks, recording an 0–9 record and 4.48 ERA in 14 starts. He returned to the team the following season and went 4–4 with a 3.58 ERA in 14 starts. For the 2014 season, Castillo played for the rookie-level AZL Diamondbacks, posting a 3–3 record and 4.40 ERA in 15 appearances. The next season, Castillo recorded a 1.83 ERA in 11 games with the team. In 2016, he played for the rookie-level Missoula Osprey, posting an 0–3 record and 4.04 ERA in 19 games. For the 2017 season, Castillo played for the Low-A Hillsboro Hops, registering a 2.91 ERA with 35 strikeouts in 34.0 innings of work. He split the 2018 season between the Single-A Kane County Cougars, Hillsboro, and Missoula, accumulating a 2.41 ERA in 24 appearances between the three teams. In 2019, Castillo played tor the High-A Visalia Rawhide, recording a 9–0 record and 3.81 ERA in 43 appearances.
Castillo did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic. He was assigned to the Double-A Amarillo Sod Poodles to begin the 2021 season before receiving a promotion to the Triple-A Reno Aces in June. Castillo finished the year with a cumulative 4.72 ERA in 29 appearances between the two affiliates. He elected minor league free agency following the season on November 7, 2021.

### Detroit Tigers

On February 1, 2022, Castillo signed a minor league contract with the Detroit Tigers organization. He was assigned to the Triple–A Toledo Mud Hens to begin the season. On August 6, the Tigers selected Castillo to their 40-man roster and promoted him to the major leagues for the first time. He made his major league debut that night. Castillo made 3 scoreless appearances for Detroit, striking out 4 over 3+2⁄3 innings of work. On November 10, Castillo was removed from the 40-man roster and sent outright to the Triple–A Toledo; he elected free agency the same day.

### Chiba Lotte Marines

On December 16, 2022, Castillo signed with the Chiba Lotte Marines of Nippon Professional Baseball. In 12 appearances for the Marines in 2023, he compiled a 3-3 record and 3.12 ERA with 34 strikeouts across 49 innings of work. Castillo became a free agent after 2023 season.

### Orix Buffaloes

On January 16, 2024, Castillo signed with the Orix Buffaloes of Nippon Professional Baseball. In 15 appearances for the Buffaloes, he compiled a 3–5 record and 2.96 ERA with 74 strikeouts across 94+1⁄3 innings pitched. On December 2, Castillo became a free agent.

### Seattle Mariners

On January 28, 2025, Castillo signed a minor league contract with the Seattle Mariners that included an invitation to spring training.

## International career

Castillo was named to the Dominican Republic national baseball team for the 2020 Summer Olympics (contested in 2021).