In New York, she was a founding member of the popular all-female sketch-comedy team SHIRLEY CHICKENPANTS, which won praise from TALK, STUFF, PAPER, BUST, TIME OUT NEW YORK, THE VILLAGE VOICE and PLAYBOY, which said: "They put the scat in sketch comedy...female comics can be both sexy and capable of delivering a well-timed barb." Betsy also performed improv and sketch comedy with "Spilt Milk," working in-house at Caroline's in New York and touring clubs and colleges along the East Coast.
She has written and performed for BEHIND THE MUSIC THAT SUCKS, an animated parody series on FUSE Network in which she can be heard as the voices of Courtney Love, Jennifer Lopez, Cher and all three Dixie Chicks. Betsy is also known for her impersonations of Sandy Duncan, Bebe Neuwirth and Karen Carpenter and can be seen in the first season of HANNAH MONTANA on Disney Channel.
On stage, she toured the United States with the comedy "Just For Laughs, A Day With Gates & Mills," starring Tim Conway and Tom Poston, and Europe with "The Rocky Horror Show," for which she also served as Assistant Director and Choreographer. In the book world, Betsy is published alongside Andy Borowitz, Cynthia Heimel, Craig Bierko, Jay Ruttenberg and many others in 101 DAMNATIONS: A HUMORIST'S TOUR OF PERSONAL HELLS.
She has recently developed TV series for MTV, ABC Family and Disney Channel.