On a November night ten years ago, 20-year-old recent college drop-out flew to San Francisco from his home in New York to start the job he now describes as having "shot me out of a cannon."
Cast as 18-year-old Bob Gaudio - spring chicken of the Four Seasons - in the first national tour of the colossally successful "Jersey Boys," Bergen spent over six and a half months rehearsing and performing at the Curran Theater here.
"The city has such a mystique for me now," he said in a recent phone call from Manhattan. "I have amazing, intense memories associated with San Francisco. It seems like the way some friends who traveled around Europe after college feel about Paris. Whenever I go back its like this really important time of my life, the people, the music all coming rushing back."
Once a child actor �- "My parents used to have me imitate all the singers on 'We Are The World' as a party trick" - Bergen made his national debut at 11, playing Dana Carvey's son on the comedian's short-lived ABC variety show.
Bergen is only half-joking when he says, "San Francisco is the city where I became a man."
"My birthday is New Year's Eve," he said. "I literally turned 21 there. I remember we had a cast party at a bar around the corner from the theater. I felt so good, like I'd really done something with my life. And I was doing exactly what I wanted to do."
Playing one of the Four Seasons in "Jersey Boys" puts a male ingenue in a slightly perilous situation: The adulation of the band by its fans is mimicked by baby boomer audiences out for a night on the town. It's not hard for actors who play the roles to feel a bit like rock stars themselves.
"I had a lead role in one of the biggest shows of all time," recalled Bergen. "I was on the road with it for a year and then opened the resident production in Las Vegas."
As a young, handsome star of that hit production - which went on to become the longest-running Broadway-to-Vegas show ever - Bergen was the toast (or at least one slice of the toast) of the town, buttered up by LA producers and casting agents who caught his act and beckoned him westward.
Not immune to charms and flattery, Bergen missed a few too many Jersey Boys performances for go-sees and screen tests. After two years, he was fired from the Vegas company.
"It was like coming off a big high," he remembers. "I moved to LA and did that thing that all actors do: Going to audition after audition, money drying up to the point where you wonder if you're going to be able to fill the car with gas."
Bergen picked up occasional small parts on shows in television series, including "Gossip Girl" and "Desperate Housewives," and also flew back to New York with some frequency, participating in workshops and auditions for "Ghost" and "Wicked" and "The Book of Mormon," but never landing a lead.
In his Los Angeles downtime, Bergen began to focus on his songwriting, eventually recording a pair of EPs consisting primarily of his original tunes, along with an almost downbeat cover of Madonna's "Open Your Heart."
"In the songs I write and the songs I love, the beat doesn't come first," says Bergen, who points to Billy Joel and James Taylor as writing influences. "Melody always wins with me. In twenty years, you're not going to sit around a campfire and hum a beat. It's called 'Name That Tune,' not 'Name That Beat.' "
The melodies of the great American songbook were attractive enough to Bergen that, in 2012, he did a spell on the road as tap-dancing Billy Crocker in the national tour of "Anything Goes."
"Bob in 'Jersey Boys' was such a perfect part for me," says Bergen. "This didn't match my strengths as well. And frankly, it didn't pay as well. I didn't feel like it was what I should be doing."
During the "Anything Goes" tour, Bergen returned to San Francisco, and was delighted to be booked to do his cabaret act on a dark night. The venue was The Rrazz Room, which had recently relocated to Van Ness Avenue from the space that has since been transformed into Feinstein's at the Nikko. Within days of his performance, the club abruptly shut down, leaving Bergen with the worst of his San Francisco memories..
Returning to LA from the road and beginning to feel that his career was in a serious downturn, Bergen's next big break echoed his first: A call from Clint Eastwood, asking him to reprise the role of Bob Gaudio in the movie adaptation of "Jersey Boys."
While the film was generally viewed as a flop, the individual performers had a chance to show some star quality.
"That film restarted everything for me," says Bergen.
In short order, Bergen won the part of Blake Moran, openly gay assistant to Tea Leoni's "Madam Secretary" on the CBS political drama. Rather unexpectedly, the showrunners for the program - which also includes recent Feinstein's headliner Patina Miller in its cast - have (via karaoke, talent competitions, and the like) come up with opportunities for Bergen to show off his singing chops.
"I did 'For the Longest Time' and 'Fire and Rain,'" he recalls. "And in the Thanksgiving week episode this month, I do three separate numbers."
Bergen's return to San Francisco takes place during the series' mid-season hiatus, and he looks forward to visiting some of his local landmarks.
"There's a little 24-hour diner up the street from the Curran called Caf� Mason," he recalls fondly. "It's a nothing place, but almost every night after 'Jersey Boys,' I went there and had a turkey and avocado sandwich. It was the best sandwich. I've never been able to match the joy of it."
Erich Bergen performs his new solo cabaret show, with songs and some hilarious stories. $65-85. Nov. 5, 7pm Nov. 6, 3pm. Feinstein's at the Nikko, Hotel Nikko, 222 Mason St. www.feinsteinsatthenikko.com