
The 60-year-old left an event at the Scottish Poetry Library on Saturday afternoon and was heading to a football game when he was assaulted.
He was treated in hospital following the terrifying incident.
Last night the actor wrote on social media site Twitter to thank well-wishers following the attack.
He wrote: “Thanks for all the messages of support folks. I’m fine honest.”
Police said a man had been arrested in connection with the incident.