Trikonis began his career as an actor and dancer, notably appearing in the hugely successful 1961 film West Side Story as Indio, one of the "Sharks", as well as dancing with Debbie Reynolds and Grover Dale to the frantic "He's My Friend" in 1964's The Unsinkable Molly Brown. Although originally unbilled, on December 3, 1968, Trikonis got his second biggest exposure in front of any audience (the first being in the aforementioned West Side Story, seen at US theatres by about 61 million moviegoers) as one of two main (out of five) male dancers who do Elvis Presley's choreography as he sings a Gospel medley as part of a widely watched NBC-TV Special entitled "Elvis".
As a director, Trikonis handled several projects from the late 1960s to the early 1980s, mostly low-budget "exploitation films". He made several films for Roger Corman at New World Pictures; Corman called Trikonis one of the best young directors he had ever worked with. His films included The Student Body.
From the 1980s to the mid-1990s Trikonis mostly directed television series. He directed episodes of television series including Baywatch, Quantum Leap, Hunter, Beauty and the Beast and Wiseguy.
