That Girl is an American sitcom that ran on ABC from 1966 to 1971 about aspiring actress Ann Marie who moves to New York and works at a series of temp jobs while waiting for her big break in show business, while her overprotective father, Lou, looks on nervously. Although she is focused on her career, Ann also finds time to fall for magazine executive Donald Hollinger, to whom she eventually becomes engaged. Ted Bessell played her boyfriend Donald Hollinger, That Girl included a wonderful array of guest stars including Bernie Kopell, Ruth Buzzi, Dabney Coleman, Rob Reiner, Richard Dreyfuss, Carroll O'Connor, Teri Garr, Ethel Merman, Rob Reiner, Bill Bixby, Dick Shawn, Gary Marshall, Sid Caesar, Barry Williams, Vic Tayback, Larry Storch, Danny Thomas, McLean Stevenson, Avery Schreiber, Monty Hall, Jack Cassidy, Carl Reiner, Pat Boone, Russell Johnson, Cloris Leachman, Kenneth Mars, Regis Philbin, Joe Flynn, James Gregory, Reva Rose and Dick Van Patten. Clara Bow was the original It girl. In the 1960s, Marlo Thomas was all That. That Girl helped pave the way for future TV Shows like, The Mary Tyler Moore Show, Murphy Brown, and Ally McBeal, and New Girl. That Girl was developed by writers Bill Persky and Sam Denoff, who had served as head writers on The Dick Van Dyke Show (with which Thomas's father, Danny Thomas, was closely associated) earlier in the 1960s.