Walter Steele

Walter Steele is the husband of Moira Queen and the step-father of Oliver and Thea Queen. He is the former CEO of Queen Consolidated where he still works.

Prior to the Series
Before the series, Walter has met and befriended Robert and Moira Queen. It is unclear if he first started working at Queen Consolidated, where he had a high position of some kind, or if he met them first.

Sometime after 2009, when Robert died, Walter has begun a relationship with Moira. When she stepped down as the CEO of Queen Consolidated to become mayor, he took over the lead over the company, but stepped back from it when Moira's run as mayor ended. He married Moira at some undefined date and became the step-father of Oliver and Thea.

i just wanna have (and get rowdy)
Walter attended the press conference of Queen Consolidated where Oliver addressed his outing and started the Queen Consolidated LGBT Foundation.

in the middle of the night, in my dreams
In Early 2018, Walter discussed Roy Harper's future plans with him.

Trivia

 * Walter seems to look a lot like Clark Kent's uncle Zod. This is a reference to the actor who portrays Walter in the Arrowverse also playing Zod in Syfy's Krypton.