Part of Titanic featuring Leonardo DiCaprio, Kate Winslet, Billy Zane, Kathy Bates, and Frances Fisher.
The 1972 Toronto production of Godspell had an absurd cast: Gilda Radner, Eugene Levy, Martin Short, Andrea Martin, Dave Thomas, Paul Shaffer. Garber played Jesus. Every one of them went on to become a comedy institution. He went to Broadway instead, collecting four Tony nominations without a win, then James Cameron cast him as Thomas Andrews in Titanic, the ship's designer who went down with his own creation. Alias in 2001 gave him the television career that Broadway had been warming him up for.
Alias is what people remember. Three Emmy nominations for playing Jack Bristow, Sydney's perpetually morally compromised spy father. After the show ended in 2006, he moved steadily through network television: The Flash and Legends of Tomorrow from 2015 to 2017, then Family Law since 2021, a Canadian legal drama where he has a prominent lead role as the firm patriarch. Canada named him an Officer of the Order of Canada in 2022. Still booking leads in his mid-seventies. The industry doesn't usually let character actors last that long.
He'd been with artist Rainer Andreesen since 2000, so when he came out as gay in 2013, it wasn't exactly a revelation. They married in 2015 in Tofino, British Columbia. Andreesen spent years modeling for Valentino, Gucci, and Armani before becoming a painter, which makes him one of the more interesting backstories in the spouse department. Garber officiated Jennifer Garner and Ben Affleck's 2005 wedding. It aged about as well as the marriage did.