Known especially for his comic skills, Welch often played characters who were "weak, foolish, conniving or otherwise beset by moral turpitude," Playbill magazine once wrote.
One such character was the comically anxious Sylvestre in Bill Irwin's 1997 adaptation of Moliere's "Scapin" at New York's Laura Pels Theatre.
In Los Angeles he impressed critics in the role of a newspaper obituary writer in a 2000 Mark Taper Forum production of Patrick Marber's "Closer." A Los Angeles Times review credited Welch with infusing his character with "a weird, inspired jolt of comedy."
In a more serious vein, Welch played Stanley Kowalski's friend Mitch in experimental Dutch director Ivo van Hove's New York Theatre Workshop production of Tennessee Williams'
Also adept at Shakespeare, Welch played Roderigo in a Public Theater production of "Othello" and Pompey in a
On television, he had roles in
His movie appearances included playing a clerk in the House of Representatives, announcing a critical roll call vote, in last year's "Lincoln" by director Steven Spielberg.
Born on Sept. 28, 1965, in Fort Belvoir, Va., and raised in Dallas, Welch first gained attention for his comedic talent in high school, when he won top honors in a local acting contest for "humorous interpretation." He studied theater at the University of Dallas and the University of Washington before beginning his career at the ACT Theatre in Seattle.
Welch is survived by his wife, Emma; a daughter, June Harper; his mother, Katherine Welch Burke; his father, William Welch; a brother and a sister.