[2] He attended Howard W. Blake High School where he studied theatre under Eric Davis, James Rayfield, and Jennie Eisenhower.
[7][8] For his portrayal of Moritz, Trensch won the 2009 Denver Post Ovation Award for Best Supporting Actor in a National Touring Production as well as the Best Individual Performance honor from BroadwayWorld.
[9] Trensch then appeared as Dwayne Hoover in the world premiere of William Finn and James Lapine's Little Miss Sunshine at the La Jolla Playhouse Mandell Weiss Theatre in early 2011.
[13] On April 11, 2013, he opened the Broadway transfer of the Royal Shakespeare Company's Matilda the Musical as Michael Wormwood and remained in the role through June 8.
[17] Then, In July, he performed the role of Tyler Clementi in the world premiere of Craig Carnelia and Joe Tracz's Poster Boy at the Williamstown Theatre Festival.
[22] Trensch stepped into the role of Mordred in the Lincoln Center revival of Camelot, reuniting with Bartlett Sher and Aaron Sorkin.
[23] On television, Trensch has guest starred on Evil and Law & Order: SVU in addition to voicing characters for Nickelodeon's Nella the Princess Knight and Netflix's Archibald's Next Big Thing.