Acting Welch's first significant acting role was in 2005, in the independent film
Jumping Off Bridges, directed by
Kat Candler. She went on to appear in higher profile projects including
drama Boyhood directed by
Richard Linklater. She also had a role in
The Tree of Life, written and directed by
Terrence Malick. She would work with Malick again in 2017's
Song to Song. In 2013, Welch appeared with her band The Trishas in two films. For her role in
Billy Bates, The Trishas played her backup band, and contributed to the soundtrack. The Trishas also appeared as a band in
Angels Sing. In 2018, Welch played the role of ex-Marine Dawn who lost her leg in an
IED explosion in the second season of the
History Channel's drama series
SIX. Her character meets Alex Caulder (
Kyle Schmid), one of the main characters of the
Navy SEAL Team, while undergoing
physical therapy. While shooting, Welch marked the one-year anniversary of her real-life accident. Welch portrayed
Barbara Gordon in the
third season of the
HBO Max series
Titans in 2021. In 2022, she appeared as recurring character Dr. Danica Powell on season six of ABC's medical drama
The Good Doctor. Music Although she grew up in a musical family, Welch did not sing publicly until 2005's “Chip Off the Old Block” SIMS Foundation fundraiser hosted by the Braun Brothers (
Reckless Kelly,
Micky and the Motorcars). She would not sing publicly again until the 2009 MusicFest in Steamboat Springs, Colorado. A tribute concert to her father,
Kevin Welch, brought her together with 3 other independent artists: Liz Foster, Jamie Lin Wilson, and Kelley Mickwee. They would go on the form the alt-country girl group "The Trishas".
Podcast Welch began recording her
KUT NPR local podcast "Enough About Music" at Austin venue
Cactus Cafe. Her first guest was Kevin Russell of
Shinyribs. The only rule with her guests is to talk about anything at all, except music. ==Personal life==