Crewe's stage musical theatre roles include "Lt. Joe Cable" in South Pacific, "Marius" in Les Miserables, "Claud" in Hair and "Chino" in West Side Story. Other stage musicals include Joseph and the Amazing Technicolor Dreamcoat, The Wizard of Oz and Aspects of Love. Crewes originated the leading role of "Walter Hartright" in the West End production of The Woman in White (in which he starred from September 2004 to July 2005).
Crewe's television and movie roles include "Luis Amor Rodriguez" in Dream Team, and "Chad Kaplan" in Resident Evil.
For his horse riding role as "Jim Ryan" in the Australian musical theatre production of The Man from Snowy River: Arena Spectacular. Crewes (who could already ride) was given intensive riding lessons by expert riding teacher Steve Jefferys, so that Crewes would not require a body double for the difficult riding feats he had to accomplish in the show. Jefferys also taught Crewes the difficult art of being a horse whisperer for his role as "Jim Ryan". Horse whispering usually takes years to learn, but Crewes was able to master this difficult skill in only two weeks.
Green Room Awards (2002)
- Winner: Martin Crewes for Male Artist in a Leading Role ("Claud" in Hair)
- Nominee: Martin Crewes for Male Artist in a Leading Role ("Jim Ryan" in The Man from Snowy River: Arena Spectacular)