Ghost of Relativity

Main Role

• 
  Moses Chan

  Chiu Wai Kan / "Michael"

  Main Role
• 
  Kristal Tin

  Shun Suk Mui / "May"

  Main Role
• 
  Nancy Wu

  Keung Yung / "Gin"

  Main Role

Support Role

• 
  Eddie Kwan

  Lei On Lup / "Hugo" [Wai Kin's university brother and General Manager of "Outstanding Architectural Design Office]

  Support Role
• 
  Pierre Ngo

  Chan Cha Lei / "Charlie" [Angie and Anna and Annie's boss and Manager of Market Development Department of "Audience Architectural Design Firm"]

  Support Role
• 
  Vivien Yeo

  Law Lai Fa / "Lolita" [On Lup's boss and Director of "Outstanding Architectural Design Firm]

  Support Role
• 
  Mimi Chu

  Suen Choi Sau Yuk / Sau Yuk Gu [Goddess and Suk Mui's old mother]

  Support Role
• 
  Celine Ma

  Ma May Zing [Hei Wo's subordinate and Director of Personnel Administration Department]

  Support Role
• 
  Ram Chiang

  Ngai Ti Man / "IT Man" {Chief Consultant of Information Technology Network Security of "Audience Architects}

  Support Role
• 
  Carat Cheung

  Anna

  Support Role
• 
  Marine Lee

  Choi On Zho / "Angie"

  Support Role
• 
  Raymond Chiu

  Wong Tai Lung

  Support Role
• 
  Zoie Tam

  Tsui On Ne / "Annie"

  Support Role
• 
  Kayley Chung

  Gigi

  Support Role
• 
  Bobo Yeung

  Cathy

  Support Role
• 
  Osanna Chiu

  Helen

  Support Role
• 
  C Kwan

  Lai A Mo / "Momo"

  Support Role
• 
  Anthony Ho

  Keung Chung

  Support Role
• 
  Choi Kwok Hing

  Qian Da Jun

  Support Role
• 
  Kiko Leung

  Candy

  Support Role
• 
  Nicole Wan

  Jessica

  Support Role
• 
  Alan Wan

  Man Hak Dun / "Manhattan"

  Support Role
• 
  Terrence Huang

  Simon

  Support Role
• 
  Marcus Kwok

  Lau Sang

  Support Role
• 
  Patrick Dunn Support Role
• 
  Steve Lee Support Role
• 
  Forest Chan Support Role
• 
  Maggie Yu Support Role
• 
  Ricky Wong Support Role
• 
  Kitty Lau Support Role
• 
  Dolby Kwan Support Role
• 
  Chan Wing Chun Support Role
• 
  Eddie Li Support Role
• 
  Kong Wing Fai Support Role
• 
  Akai Lee Support Role
• 
  Joe Junior Support Role
• 
  Chan Min Leung Support Role
• 
  Phoebe Chow

  Miss Wong

  Support Role
• 
  Ng Pui Yu

  Cora

  Support Role
• 
  Helen Seng

  Wing

  Support Role
• 
  Alan Tam Support Role

Guest Role

• 
  Alex Yung

  [Bubble's helper] (Ep. 12)

  Guest Role
• 
  Calvin Chan Guest Role
• 
  Jim Tang Guest Role
• 
  Derek Wong Guest Role
• 
  Mark Ma Guest Role
• 
  Tse Ho Yat

  [Debt collector]

  Guest Role
• 
  Fanny Lee Guest Role

Unknown

• 
  Andy Wong Unknown
• 
  Helen Ng Unknown