Makalov is fond of drinking, gambling and slackening off from work, resulting in him often traipsing into troubled waters, in the form of both lawful and unlawful forces alike. This has caused Marcia to constantly worry for his well-being, which she openly displays through angry outbursts of tantrums. Makalov is also known for being one to exploit his relationships with others, as can be observed through his numerous attempts to milk money out of Marcia.
Despite the major flaws in Makalov's character, however, it has also been observed that he can be honest under certain circumstances and showing that he deeply cares for his sister. This can be seen in his support conversation with Astrid, where he returns the pendant he duped her into giving him after being chided by an enraged Marcia. Astrid will then reveal the true value of the pendant to Makalov, whereupon he will be shocked at her willingness to give up her wealth for his sake. In a Base Conversation, he stopped his sister from crying by getting her to laugh a little bit.