Donovan also played Brian Sanders in Hostages and White House Chief of Staff Mark Boudreau in 24: Live Another Day.

[3] He has been a guest star in a number of television series, notably Friends portraying the character Joshua Burgin.

Donovan's earliest film roles included Kevin Donaldson in SpaceCamp (1986), recovering drug addict Donald Towle in Clean and Sober (1988),[13] 1st Lieutenant Luke Sinclair in Memphis Belle (1990)[14] and Paul Matthews in Love Potion No.

Donovan portrayed Joshua Burgin, the love interest of Rachel Green, for several episodes of Season 4 of Friends.

[31] On Broadway, he played Alan Seymour in the 1994 Roundabout Theatre Company revival of Picnic[32] and appeared in Amy's View with Judi Dench in 1999.

[33] Off Broadway, Donovan appeared with Glenn Fitzgerald in the 2001 production of Lobby Hero by Kenneth Lonergan, playing the role of the crooked cop Bill.

Donovan has appeared in numerous productions[34][35] at the Williamstown Theater Festival, including Once in a Lifetime, Under the Blue Sky, and The Glass Menagerie.

In 2011, he starred with Frances McDormand in the world premiere of David Lindsay-Abaire's play Good People at the Manhattan Theatre Club.

[36] Donovan had a regular gig with traditional Irish band the McGuffins, with whom he released an album titled Wake Amusements.

As of May 2011, Donovan voices radio and video advertising for PNC Financial Services and volunteers with the Young Storytellers Program.