Tahnee Welch was born in 1961 in San Diego, California, to father James Welch and mother Raquel Tejada, a renowned actress, and the younger sister of Damon Welch. Her childhood was spent traversing various countries, including Spain, England, and Italy, before returning to an all-girls school in the United States.
As a teenager, Tahnee Welch made the bold decision to drop out of school and leave home at the age of 16. Following a stint of odd jobs, she relocated to New York and pursued her passion for acting. Her early career took her to Italy, where she landed the lead role in the 1984 film Amarsi un po', opposite the iconic Virna Lisi and newcomer Claudio Amendola. The film became a beloved favorite among the Italian public and continues to air regularly on Italian television.
Upon returning to New York, Welch was cast in Ron Howard's summer blockbuster Cocoon (1985),alongside veteran actors Jessica Tandy, Hume Cronyn, and Maureen Stapleton. Despite the massive success of Cocoon, Welch continued to hone her craft in Italy and Germany, enjoying widespread acclaim for her performances in the mini-series Disperatately Giulia (1989),directed by the legendary Enrico Maria Salerno and co-starring Fabio Testi and Laura Antonelli.
Throughout her career, Tahnee Welch has appeared in a diverse range of films, including the American indie pictures Search and Destroy (1995),based on Howard Korder's play; I Shot Andy Warhol (1996),directed by Mary Harron; and Sue (1997),directed by Amos Kollek.