Born on February 15, 1966, Cynthia Lamontagne had her start in acting when appearing in small television and film roles, including Flirting with Disaster (1996), Dharma and Greg (1999), and even as a "Fembot" in Austin Powers: International Man of Mystery (1997)... 

That '70s Show "Big Rhonda" today

By the turn of the century, Cynthia joined the cast of the Wisconsin '70s gang as "Big Rhonda", one of many of "Fez"'s love interests. She had a recurring role on the series, and would later appear in Buffy the Vampire Slayer, Veronica Mars and a small uncredited role in Criminal Minds

Her next and last credited role was as the bartender in the raunchy comedy Forgetting Sarah Marshall (2008). While many of her co-stars found mass Hollywood success after That '70s Show, we also understand if she wanted to be out of the crazy spotlight! 

Although the California native seems to have taken a step back from acting, you can still check her out in older movies like My Engagement Party (1998) and American Virgin (2000). 

Unlike celebs these days, Cynthia appears to stay off of all social media channels, so her personal life is quite unknown. Wherever in the world she may be, "Big Rhonda" was still one of the most memorable castmates on the show, and we wish her the best!

Cast of 'The Big Bang Theory'

Test your knowledge!

Only one cast member actually has a doctorate in real life! Who is it?