[citation needed] Wallem appeared in the 1993 film Sleepless in Seattle as the waitress from whom star Meg Ryan's character buys tea on the road.
On Seinfeld Wallem played Hildy, the waitress who refuses to serve Elaine Benes her customary "big salad" in the 1994 episode "The Soup."
Young viewers are likely to recognize her voice as Doctor Paula Hutchison, Virginia Wolfe and other female characters on the Nickelodeon animated television series, Rocko's Modern Life (1993–1996).
She returned to voice Hutchison and other characters in the 2019 Netflix special Rocko's Modern Life: Static Cling.
[3][4] Wallem married singer Melissa Etheridge on May 31, 2014, in San Ysidro Ranch in Montecito, California, two days after they both turned 53.