Craig Arnold portrayed Luke Baker in seasons 12, 13, and 14 of Degrassi. Craig's other television credits include SyFy's Haven, SyFy's Lost Girl, Showcase's King, NBC's The Firm, Global/Reelzchannel's Bomb Girls and the feature film Blackbird.
- Craig is a Gemini.
- Craig Arnold shares his surname with Charlotte Arnold who portrayed Holly J. Sinclair but they are not related.
- He has known Sarah Fisher who played Becky Baker since he was around the age of three. They were neighbours and their sisters were friends.
- He has the same first name as Craig Manning.
- He portrayed the role of Lukas in the 2014 film "Wet Bum", co-starring former Degrassi cast members Jamie Johnston and Wesley Morgan.